Right to own an architecture (by Wolfgang Koehler‚ Memmingen‚ Germany 10/2008) The social issue I would like to discuss here is: “Suppose a computer manufacturer develops a new machine architecture. To what extent should the company be allowed to own that architecture? What policy would be best for society?” To develop a new machine architecture would require many recourses. Manpower‚ research laboratories‚ manufacturing equipment and last but not least a lot of money. Since companies are
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2.5 Aspects of Solar Cell Efficiency Most of the energy that reaches a cell in the form of sunlight is lost before it is converted to electricity. The usual efficiency of these systems ranges between 10% to 15%‚ though sometimes this efficiency increases to 30% and more. Certain physical properties affect the cell efficiency which we will briefly state. 1- Reflection: Studies show that untreated silicon reflects 36% or more of sunlight that strikes it. Chemically coating and texturing the surface
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The Right to Own Guns As American citizens‚ we have more rights and freedoms than any other group of people in the world. The founders of this country established these freedoms because they had previously lived in countries where the people did not have as many rights. One of these rights is stated in the Second Amendment to the Constitution‚ which proclaims "the right of the people to keep and bear Arms‚ shall not be infringed." But over the years various laws and regulations have infringed
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case of realistic profiles it is the distance at which the Concentration of the diffusing atoms drops to a characteristic lower value. For example，about 0.3 for a Gaussian concentration profile. A2.5 For commercially produced screen-printed solar cells‚ the surface doping concentration is about 1×10!" ~1×10!" ������������������������������/������������! . It is nearly the solid solubility of phosphorus in silicon substrate. On the other
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Cell Phone Technology The cell phone technology that is ever changing by the day was scientifically invented and born back in the early 1980’s. Science was the main key to the birth of the cell phone which was put together by the Motorola Company who today is still making cell phones. Before the cell phone came out the car phone was the first mobile phone which were very large and had to be hooked up to a briefcase which supplied the power for the mobile phone. Science was the utilized to create
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Asses Impact of Technology on Cell Theory Technology has had a profound impact on the development of cell theory‚ allowing scientists to view the components of organisms on an unprecedentedly small scale. Before the creation of microscopes‚ misconceptions about how organisms were originated arose. The idea of spontaneous generation‚ a theory held for nearly two millennia‚ proposed that organisms originated from inorganic matter. The lack of technology impeded on the development of cell theory‚ until
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Solar Energy In 1839 Alexander Edmond Becquerel discovered the photovoltaic effect which explains how electricity can be generated from sunlight. He claimed that an electrode submerged in a conductive solution would create an electric current. ‘However even after much research and development subsequent to the discovery‚ photovoltaic power continued to be very inefficient a solar cell were used mainly for the purposes of measuring light. Solar energy is radiant light and
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Solar‚ Hydrogen and Fuel Cell : Current & Future Wan Nadia Kamaruddin‚ Azman Zainal Abidin‚ Noorly Akmar Ramli Yuzlina Mohd Yusop‚ Siti Indati Mustapa Policy Analysis and Research Management Pusat Tenaga Malaysia Level 8‚ Bagunan Sapura @ MINES 7 Jalan Tasik‚ The Mines Resort City 43300 Seri Kembangan Selangor‚ Malaysia http://www.ptm.org.my Abstract In its quest to become a developed country by year 2020‚ Malaysia fully subscribes to the concept of sustainable development. The
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Who owns the information he owns the world It is impossible to underestimate the impact of Mass Media on every single person‚ and a society as a whole. For many centuries‚ starting with the invention of first printing machine‚ public opinion was extensively exposed to the influence of mass media. Ideally‚ mass media should be an independent body‚ whose main function is to reflect the reality‚ and provide people with new information‚ concerning economical‚ political and cultural aspects of life.
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Progress in solar PV technology: Research and achievement V.V. Tyagia‚ b‚ ‚ ‚ Nurul A.A. Rahimb‚ N.A. Rahimb‚ Jeyraj A./L. Selvarajb a Department of Physics‚ Manav Rachna College of Engineering‚ Faridabad 121001‚ Haryana‚ India b UM Power Energy Dedicated Advanced Centre (UMPEDAC)‚ Level-4‚ Wisma R&D‚ University of Malaya‚ Kuala Lumpur 59990‚ Malaysia Abstract The development in solar PV technology is growing very fast in recent years due to technological improvement‚ cost reductions
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