The Environmental Effects Of Latin American Colonization

Nato Sandweiss Hill TPSP, Period 5 21 October 2014 The Environmental Effects of Latin American Colonization The year 1492 is arguably the most important span of 12 months in world history; nearly a quarter of a million Jews were expelled from Spain, Pope Alexander VI came into power, and most importantly, Genoese explorer Christopher Columbus was the first European to set foot in what came to be known as â€Å"the New World.† It’s common knowledge that Columbus didn’t really discover the New World. Rather, the Americas, as the New World came to be known, had been populated nearly 15,000 years prior, when hunter-gatherers from Central Asia crossed what is now the Bering Sea into the northwestern portion of the Americas. It took thousands of years, but eventually, the descendants of these original ‘settlers’ populated not only the entire North American continent, but also South America and the Caribbean islands. Over time, as societies grew and expanded, the methods of living drastically changed. Citi es began to sprout up, and with them came the great civilizations that are so well-known today. Tenochtitlan, modern-day Mexico City, became the center of the Aztec Empire, and was â€Å"larger than contemporary Paris, London, or Lisbon† (Miller 10). With these great empires- namely the Aztec, Mayan, and Incan- the modern history of Latin America arose. When European explorers finally came about exploring the New World, they forever altered not only the social construction of theShow MoreRelatedThe Spanish American War Essay1073 Words   |  5 PagesEitan Flor Professor Joseph Holbrook AMH 2042 4 October 2017 The Spanish-American War The conventional reasons associated with the intervention of the United States in the Spanish-American war seem to originate with the lack of independence for Cuba and the Philippines along with the explosion of the U.S.S Maine in the Havana Harbor. 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Ic to Nano Free Essays

string(160) " done with a hacksaw! In either case, marking out is simplified by preparing a full size profile on paper, centered in a circle the same size as the bar stock\." SAY IC TO NANO!!!!! A Paper On â€Å"Nano – Internal Combustion Engines† Paper Presented By, N. TONY V. KUMAR III B. We will write a custom essay sample on Ic to Nano or any similar topic only for you Order Now TECH. IIIB. TECH. MECHANICAL ENGINEERING MECHANICAL ENGINEERING G. PULLAREDYENGG COLLEGE G. PULLAREDDYENGG COLLEGE tonynemallapudi@gmail. com ph:9573071011 ph:9493205458 [pic] Introduction: What is nano technology? Its worth pointing out that the word nanotechnology has become very popular and is used to describe many types of research where the characteristic dimension are less than about thousand nano meter If we are to continue these trends we will have to develop a new manufacturing technology which will let us inexpensively build nano system with mole quantities that are molecular in both size and precision and are inter connected in complex patterns NANO TECHNOLOGY WILL DO THIS. What is heat engine? Heat engines work on the principle of converting chemical energy into mechanical work and evolve from external combustion engine to internal combustion engine. External combustion engine is the heat engine in which fuel combustion takes place external to cylinder. Due to this it is bulky and consumes lot of place. Second revolution of heat engines are ICE in which fuel combustion takes internally and consumes less place and became compact, cost effective. Of late third revolution is NANO Internal Combustion Engine. It is difficult to thread- in a needle. Imagine working with an instrument with one billionth of meter. Construction of â€Å"Nano† – A 0. 1cc Compression Ignition Engine: [pic] The Nano is a 0. 1cc (that’s less than 0. 01 cuin) compression ignition engine – most frequently, if somewhat inaccurately, referred to as a â€Å"diesel†. It was designed by Richard Gordon and the plans were included as a supplement with the British Magazine Model Engineer in the early 1990’s [pic] An idea of the size of the Nano is given by this picture. From backplate to drive washer is less than 1 inch. There are no exotic materials required. The crankcase is hacked from a solid cube of aluminum 3/4†³ on a side. The piston and contra piston are cast iron. The crankshaft and liner are any old steel from the scrap box. [pic] Here is an exploded view of the engine. The odd looking thing in the foreground is a special Nano-Spanner required to tighten the back plate. It also fits the fuel nipple. The construction is extremely conventional – only the scale is unusual. [pic] Like all model IC projects, there are a few special jigs and tools required to construct the Nano. All are fully detailed in the plan, which includes step by step instructions with photos. The cutter is made from water hardening drill rod (called â€Å"silver steel† in the UK because of its appearance – it contains no silver). the teeth are formed of Dermal-type cut-off wheel. [pic] The cutter is used to form the exhaust ports in the cylinder. There are three of these, spaced at 120 degrees with sufficient space between them for the angled transfer ports to slightly overlap the timing. The crown of the piston is conical to assist transfer. The contra piston has a matching concave conical depression. [pic] As mentioned previously, the crankcase is formed from a cube of aluminum. The venturi is machined separately and secured with Lok-Tite before the final reaming of the crankshaft journal. Notice the three transfer passages in the photo. These terminate in a transfer belt below the cylinder seat that matches with the cylinder transfer ports. If you look very closely, you’ll also see the stuff-up that turned away part of the venturi opening. Always happens on the last operation! n [pic] There’s nothing special in the crankshaft components. Another jig (not shown) is made to hold the shaft in the 3-jaw chuck, offset by half the throw for forming the crank pin. Even at these sizes, final lapping to size is no different from larger engines in terms of the amount of metal that must be LEFT for removal. Only the microscopic size makes things difficult. The prop driver knurls were formed with a thread form tool, set on edge and used as a shaper. The prop nut is anodized in the usual way. [pic] Again, apart from their size, there’s nothing special about the needle valve components the needle itself was made from steel and â€Å"blued† it by a quick heat in a gas flame followed by water quenching. No big deal, but the amazing thing is the attention it draws with people who examine the engine. This costs just US$10(Rs. 440/-) only. When it was fired, it run briefly, oscillating back and forth about TDC like over compressed diesels with small mass fly wheels are won’t to do. Running! .but spring starters are the only way to start ultra small diesels – hand propping just won’t work. Also, the fuel for mini diesels needs a lot of ether – as high as 50% by volume. With high ether fuel and a spring starter, the little Nano will burst into life. Richard Gordon claims it will turn 40,000 rpm – yes, that’s no typo, forty thousand revolutions per minute. American engine builder Ron Colona used to demo his at model engineering shows and turning at better than 20,000 rpm. | | | |The Components Used: | | | | | |[pic]Crankcase | | | | | |[pic]Backplate | | | | | |[pic]Cylinder and Head | | | | | |[pic]Venturi and Needle Valve Assembly | | | | | |[pic]Conrods and Crankshafts | | | | | |[pic]Piston and Contra-Piston | | | | | |[pic]Final Assembly and Test Report | | | | Crankcase and Cylinder rough-out: The crankcase starts off as a chunk of aluminum bar of about 1-1/2†³ diameter, sawn to length, plus a little bit. The first step is to finish turn the front section with a 1/4†³ radius where the journal blends into the body. The photo shows the roughing out process. Note that the tool is raked back sharply while â€Å"hoggin’ great cuts† are made so that if it digs in, the cut will be forced shallower, not deeper as it would be if the tool were set raked forward like a regular knife tool. Next we need to remove all the excess aluminum that does not look like a crankcase. This can easily be done with a band saw, or less easily done with a hacksaw! In either case, marking out is simplified by preparing a full size profile on paper, centered in a circle the same size as the bar stock. You read "Ic to Nano" in category "Papers" Mine was done from the CAD drawings, but pencil and compass could achieve the same result with about the same effort. The paper template has a hole cut roughly in the middle to accommodate the journal and the blended radius where it meets the front face. It is attached to the face with a standard glue stick. If you’re careful, this will last long enough to complete the butchery. Saw to within about 1/32†³ (1mm) of the outline. Take care because heat buildup will melt the glue. The next photo shows the four basic stages in crankcase manufacture: [pic]Bar stock blank [pic]Journal turned and sawing template glued in place [pic]Crankcase rough sawn to within 1mm of the template outline [pic]The finished crankcase [pic] Backplate: The back plate is simple turning with only some aspects of work holding posing any problems. In this first shot, the back plate profile has been turned on a piece of bar stock with the interior face oriented towards the tailstock. This means we will be screw cutting towards the shoulder formed by the back plate rim, so a thin (0. 20†³) run out groove is first cut at the thread/rim junction to the depth of the thread form. This also assures the back plate will form a tight seal against the rear of the crankcase. The thread cutting tool is a piece of 1/4†³ diameter HSS steel, ground to a 60 degree point with seven degrees of side rake, mounted in a tracting tool holder. This m agnificent gadget takes a while to make but is absolutely invaluable to thread cutting. The little ball lever actuates a spring loaded, over center cam – just requiring a flick to retract the tool bit by about 3/16†³. This allows the saddle to be repositioned for the next cutting pass without having to twiddle dials and remember settings. The cylinder blank has now been replaced in the 3 jaw chuck with the top of flange against the jaws and some thin aluminum shim (beer can material) around the outside to protect the finish and thread. The bore will be drilled so as to leave 8 to 10 thou to be removed by the reamer. It is pilot drilled first. I’m told its good practice to select a pilot size no grater than half the next drilling size to prevent the next size wandering. Here we see the reamer being floated into the bore using the tailstock (larger hand reamers will have a dimple in the end which assists this operation. For this operation, the headstock is turned by hand. Keep up plenty of suds and never rotate the chuck backwards. The reamer is prevented from rotating by resting the tap handle on the compound slide. A piece of shim material protects the slide from damage by the handle. The transfer ports of the weaver are unusual. They comprise 5 vertical channels, spaced equidistantly around the forward 180 degrees of the cylinder. They terminate in a â€Å"transfer belt† below the exhaust ports. This arrangement avoids the induction port at the cylinder rear. These ports cannot be cut before reaming (or boring) as their presence would make it impossible to cut the bore accurately. This flash-failure shot shows how they are drilled. A short aluminum (or brass) plug is turned to be an interference fit up the bore. The holes are then drilled at the intersection of the cylinder and plug. The cylinder wall will be quite thin adjacent the transfer passages, but by using a slightly softer material for the plug, the drill will incline towards the softer material, preventing any danger or a ruined part. Venturi and Needle Valve Assembly: In the previous section, the cylinder had progressed to a nearly finished state, still requiring internal lapping. Lapping should always be the last operation on a cylinder of this type. This means the boss for attaching the side port venturi must be fitted before lapping can be done. In this session, the boss is made and the associated parts for the venturi and needle valve. The boss will be soft soldered to the cylinder (diesels don’t get hot enough to melt soft solder). â€Å". older does not make the joint, it only keeps the air out† and schooled me to make a good fit of parts to be soldered. The boss will butt to the cylinder, which has an outside diameter of 0. 500†³. So, a good fit can be achieved by profiling th e boss with a 1/2†³ end mill. In this photo, we see the boss blank (enough for four) which has been finished outside, drilled ready for tapping and transferred still in the 3 jaw chuck to the mill for end profiling. Applications: Nano IC engine has various applications ranging from race cars to space crafts. ? In race cars this IC Nano Engine was used. The engine was fully fabricated, that is, no castings were employed. | | | | | | | | | | | | | |[pic] | |It can be controlled in aero planes/satellites/space ships etc. , the timing of in let and exhaust valves. | |According to NASA reports they are experimenting about the use of nano engine in nano pico satellites. | |In case of a mine tragedy where harmful gases are emitted ,these nano IC engines can be employed as powerful blowers to blow out these gases is a | |less time saving the lives of trapped miners . We require at least 5-6 blowers to blow these gases where as two nano IC engines could do the tick in| |less time. | |Agriculture pumps sets. | |Every field of industry. | |Prospects: | |The problem | |Every day people are spending more and more money because of rising gas prices. People all over the world are trying to find a solution—even | |visiting websites to locate the nearest and cheapest gas, all the while losing time and mileage just to reach [these] refueling stations. Many have| |been giving up favorite hobbies and changing life plans because of the need to reallocate their funds for gas. For those of us who must drive to | |work or school, it seems we have little choice but to continue paying more. Now, there is a way to fight back against these constant increases in | |gas prices—and to fight pollution and protect the environment in the process. | | | |The solution | |Use the most advanced technology available to improve fuel economy, prolong the engine life, reduce harmful emissions and protect the environment. | |The number one product for fuel economy, power and pollution control is now available. |Introducing our two unique nanotechnology products: | |F2-21 NanoLube Engine Oil Treatment, and | |F2-21 NanoRon Gas Diesel Fuel Enhancer. | |With nanotechnology, fuel transforms at the nano-level to achieve a more complete combustion, resulting in increased fuel economy, more driving | |power, and fewer pollutive emissions. | |Use either product or both to get multiple benefits: | |  Ã‚  Ã‚   –   Adds great power to your engine. NanoLube eases heavy driving loads and increases   | |  Ã‚  Ã‚  Ã‚  Ã‚      Driving  pleasure with a faster, smoother, and quieter ride. |  Ã‚  Ã‚   –   Boosts miles per gallon (analogous to buying Premium Gas or boosting your octane number), | |  Ã‚  Ã‚  Ã‚      While saving you money and conserving energy. | |  Ã‚  Ã‚   –   Prolongs engine life by cleaning your combustion chamber and piston ring deposits, | |  Ã‚  Ã‚  Ã‚      Extending engine life and cutting equipment downtime. | |  Ã‚  Ã‚   –   Protects the environment by reducing harmful emissions and fighting global warming. | | | | | |[pic] | | | Summing up With the application of Nano in every sphere of life the ‘big’ may not find its place in engineering dictionary in future. If we are to continue these trends we will have to develop a new manufacturing technology, which will let us inexpensively build nano system with mole quantities that are molecular in both size and precision and are, inter connected in complex patterns NANO TECHNOLOGY WILL DO THIS. NANO technology with all its challenges and opportunities is an avoidable part of our future. It can be rightly said that nano technology slowly and steadily assuring in the next Industrial Revolution. Bibliography †¢ www. Bbc. co. uk †¢ chrenich@dstc. com †¢ www. google. co. in How to cite Ic to Nano, Papers

Business Plan Fashion Star Boutique

Question: Discuss about the Business Planfor Fashion Star Boutique. Answer: The business model of Fashion Star Boutique is as follows: Key partners: The key are partners are the suppliers and customers Key activities: The key activities include designing of fashionable dresses following the latest trends of fashion, along with considering the customers demands (Drucker, 2014). Value proposition: The core values include the supply of the best clothes and fashion accessories to the customers, and ensure customer satisfaction. Customer relationship: The relationship established by the customers is a positive one and the boutique targets towards the establishment of strong customer relations. Moreover, customer loyalty needs to be ensured by introducing attractive offers to the customers (Franke et al., 2013). Customer segment: The customer segments who are targeted by the boutique are the high class people and the people who are fashion conscious. Key resources: The key resources are the efficient employees of the company (Drucker, 2014). . Distribution channel: The distribution channel includes the online access as well as the in house stores of the boutique. Cost structure: The most costly resources of the business includes the materials of the clothes and the materials of the other fashion accessories. Revenue stream: Since the clothes are very fashionable and modern, hence the customers are willing to pay very high prices as well (Drucker, 2014). However, the mode of payment preferred by the customers is the online payment mode, using cards or internet banking facilities. This in brief is the business plan of the Fashion Star Boutique. The key partners and the key activities have been identified, along with the cost structure and the revenue streams of the boutique. References Drucker, P. (2014).Innovation and entrepreneurship. Routledge. Franke, N., Harhoff, D., Henkel, J., Hussler, C. (2013).Innovation und Entrepreneurship. Springer/Gabler.