The Iron-Carbon Diagram There are two iron-carbon equilibrium diagrams: - stable iron-graphite Fe-Gr - metastable iron-cementite Fe-Fe3C The stable condition usually takes a very long time to develop. The metastable diagram is of more interest. Fe3C iron carbide called cementite because it is hard. Following phases exist on Fe-Fe3C diagram: - liquid solution of iron and carbon (L) - ferrite ( ) – an interstitial solid solution of carbon in Fe (bcc). At room temperature ferrite is ductile but
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most common form of architecture‚ but they were used for worship gods and politics‚ there existed two different types of architecture in the Ancient Greece; The Doric order‚ and The Ionic order‚ these two orders were the most common type of architecture used in the Ancient Greece. The Doric columns were the simplest‚ having the capitol which is the top or crown‚ they are circular with a square on top‚ but they do not contain a base. The Doric was very simple yet powerful architecture. The Parthenon is
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I NASA Technical Paper 1865 4. Design and Experimental Results for a “ Flapped Natural-Laminar-Flow for General Aviation Airfoil Applications Dan M. Somers Virginia Langley Research Center Hampton‚ NASA National Aeronautics and Space Administration Scientific end Technical Information Branch 1981 . INTRODUCTION Research on advanced-technology’ airfoils for general aviation applications has received considerable attention over the past decade at the NASA Langley
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Dravidian architecture Dravidian architecture was an architectural idiom that emerged in the Southern part of the Indian subcontinent or South India. It consists primarily of temples with pyramid shaped towers and are constructed of sandstone‚ soapstone or granite. Mentioned as one of three styles of temple building in the ancient book Vastu shastra‚ the majority of the existing structures are located in the Southern Indian states of Tamil Nadu‚ Karnataka‚ Kerala‚ and Andhra pradesh. Various kingdoms
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Data Acquisition and Interfacing Lecture 09 Introduction A data acquisition system consists of many components that are integrated to: • Sense physical variables (use of transducers) • Condition the electrical signal to make it readable by an A/D board • Convert the signal into a digital format acceptable by a computer • Process‚ analyze‚ store‚ and display the acquired data with the help of software Data Acquisition System Block Diagram Flow of information in DAQ 1. 2.
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Logic to Ladder Diagram There are some methods to do PLC programming. The programming methods can be with Logic Ladder Diagram‚ mnemonic (statement list)‚ and / or function block diagram. One of the PLC programming methods that are very commonly used programming using PLC ladder diagram. The method is practical and easy to understand. The programmer in charge of writing a program should describe an electronic switch circuit. It can be designed to perform the conversion of electronic circuits that
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History The first structured method for documenting process flow‚ the "flow process chart"‚ was introduced by Frank Gilbreth to members of the American Society of Mechanical Engineers (ASME) in 1921 in the presentation “Process Charts—First Steps in Finding the One Best Way”. Gilbreth’s tools quickly found their way into industrial engineering curricula. In the early 1930s‚ an industrial engineer‚ Allan H. Mogensen began training business people in the use of some of the tools of industrial engineering
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The Hertzsprung-Russell Diagram or‚ the H-R Diagram for short‚ is a graph which plots stars according to their temperature and absolute magnitude. This graph reveals a pattern‚ which in fact is quite interesting. The H-R Diagram is named for the two astronomers‚ Ejnar Hertzsprung and Henry Russell‚ who discovered this pattern of stars. These two astronomers independently discovered that comparing magnitudes and spectral class (color) of stars yielded a lot of information about them. <br><br>One key
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Article 1discusses how different estimates of equity value are obtained by researchers while using the discounted cash flow model (CF) and the Residual income (RI) model. It recognises the inconsistencies prevalent while implementing them. Francis et al (2000) use Value line estimates for finite forecasting periods. They conclude that RI is superior to CF. Courteau et al (2000) analyse whether different valuation models are same when a terminal value calculation based on price is used. They conclude
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The rapid growth of Web 2.0 introduced a number of new design patterns and architectural styles in web development. One of the notable techniques involves the mashing up of information from existing services to deliver value-added new services. This process effectively includes the drawing of content from several sources in order to create a new content or service. The resulting web page is finally referred to as mashup of the existing content. While mashup services bring flexibility and speed in
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