microcontrollers‚ a mechanical distributor selected the specific spark plug to fire when the fuel-air mixture was compressed just so. The timing of the ignition was the control variable. The mechanically controlled combustion process was not optimal in terms of fuel efficiency. Modeling of the combustion process showed‚ for increased fuel efficiency‚ there existed an optimal time when the fuel should ignite. The timing depends on load‚ speed‚ and other measurable quantities. The electronic ignition system
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Before 600 CE China changes from Warring States to an empire during the period of Qin and Han dynasty in efforts to unifying and consolidating China. There were similarities in their bureaucracy in the means of enforcing authority and have contributed in innovations on technology‚ but there were differences in political philosophy. Primarily‚ the Chinese states emerge 2200 BCE‚ under the Xia‚ Shang‚ and Zhou Dynasties‚ but fell into the age of warring states. Its unification had vanished and there
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Specific Heat Lab Report “Here are the facts we confront; No one is against conservation. No one is against alternative fuel sources.” – J. D. Hayworth Research Question: Does the number of hydrocarbons that a fuel is composed of affect how much it will ignite? If so‚ consider the following: What is the quantity and concentration of the combustion that is released and how can that be measured in other (more coherent) means? These are the fuels that were seasoned throughout the
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I. History Review through 600 CE A. Nomads: Follow the Food 1. Satisfy basic needs: shelter and food a. No cities‚ didn’t know how to farm 2. Foraging societies (hunter-gatherer clans): hunt and gather b. Small group of people traveled from point to point based on the climate availability of plants and animals in an area c. Limitations: i. Capacity of their surroundings ii. Inability to store food long-term
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Racism is one of the world’s major issues today that has been continuing on for centuries. In the stories‚ In The Heat Of The NIght‚ written by John Ball‚ and in To Kill A Mockingbird‚ written by Harper Lee‚ racism promotes a great deal of negative relations and actions between the characters. In the story‚ In the Heat Of The Night‚ Virgil Tibbs is associated with racism. Virgil Tibbs becomes a suspect of murder for being out late at a train station and for being black. In the story‚ To Kill
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Nick Boyea Billy Lee 3/9/11 Molar Mass by Freezing Point Depression Overview The purpose of this lab is to measure the freezing point depression of a solution of an unknown substance and BHT to determine the molar mass of the unknown substance. Summary of Lab Procedure If not already completed‚ crush a small amount of BHT and pack it into a capillary tube. Use a small rubber band to clamp the capillary tube to the thermometer‚ and fasten the thermometer to a ring stand. Fill a Thiele tube
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Activity C03: Heat of Fusion for Ice (Temperature Sensor) |Concept |DataStudio |ScienceWorkshop (Mac) |ScienceWorkshop (Win) | |Phase change |C03 Heat of Fusion.DS |C03 Heat of Fusion |C03_ICET.SWS | |Equipment Needed |Qty |Equipment Needed |Qty | |Temperature
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From 1450 C.E. to 1750 C.E.‚ Japan experienced unexpected political and economic transformation‚ yet the cultural continuities were much perserved. It was during this time period that the Japanese government became more politically centralized and economically flourishing. Meanwhile‚ the cultural traditions were much maintained‚ though new forms existed. To begin with‚ dramatic political changes started in Japan from decentralized to dictatorship. In the early fifteenth century‚ decentralization
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Hess Law Lab DESIGN Aspect 1: Problem: What is the molar enthalpy of formation of magnesium oxide? Variables: Manipulated: None Responding: None Controlled: Isolation of calorimeter‚ concentrations of substances involved. Aspect 2: Background Information: Assumptions: Specific heat capacity of water‚ we assume that the acid has the same qualities as water including heat capacity‚ and we assume the enthalpy of formation for magnesium oxide from the data booklet for theoretical
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Study of Recovery of Waste Heat From the Exhaust of Automotive Engine K. Wojciechowski1‚ J. Merkisz2‚ P. Fuć2‚ P. Lijewski2‚ M.Schmidt1 1 Faculty of Materials Science and Ceramics AGH University of Science and Technology‚ Al. Mickiewicza 30‚ 30-059 Cracow‚ Poland 2 Institute of Combustion Engines and Transportation‚ Poznan University of Technology‚ Piotrowo 3‚ 60-965‚ Poznan‚ Poland e-mail: gcwojcie@cyf-kr.edu.pl‚ phone: (+48)12-61-73-442 Abstract Automotive engines reject a considerable amount of
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