Band broadening theory (Van Deemter equation) It is well recognized now that column band broadening originates from three main sources: 1. multiple path of an analyte through the column packing; 2. molecular diffusion; 3. effect of mass transfer between phases. In 1956 J.J. Van Deemter introduced the equation which combined all three sources and represented them as the dependence of the theoretical plate height (HETP) on the mobile phase linear velocity. Originally‚ it was introduced for gas
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Technology Explanation There are many different kinds of technologies that are available for the world to use today. We have the convenience of all different types data input and output devices and the means to store and make available at lightning fast speeds. Some of the input devices that we use every day are essential in different kinds situations and projects everyday. We also use many different types of output devices to view our finished product. The input devices that we use are
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Heat Equation from Partial Differential Equations An Introduction (Strauss) These notes were written based on a number of courses I taught over the years in the U.S.‚ Greece and the U.K. They form the core material for an undergraduate course on Markov chains in discrete time. There are‚ of course‚ dozens of good books on the topic. The only new thing here is that I give emphasis to probabilistic methods as soon as possible. Also‚ I introduce stationarity before even talking about state classification
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care-free life‚ whereas “Il Penseroso” represents more of a quiet‚ reserved life‚ such as the one Milton lived. At the beginning of each poem‚ each of them reflect on each other’s premise‚ then going on to their own qualities. Both of the poems seem like they could come from different people‚ staying very central and positive on their own thoughts. In this essay‚ an explanation will be done on the main points of Milton’s joyous poem‚ “L’Allegro”. Firstly‚ the introduction of “L’Allegro” talks about
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A Scientific Explanation: Why Do Bats Fly At Night? We have always known bats for being nocturnal‚ but do we exactly know why? Without the aid of science‚ our ancestors solved this mystery through means that were available during their time. As they were both artistic and expressive‚ they spent most of their time coming up with stories‚ which are now what we know as legends. One of which was the story “Why Bats Fly at Night” which was adapted from Rosario Singh’s story “Bakit sa Gabi Lumilipad
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quadratic equation is an equation that has a second-degree term and no higher terms. A second-degree term is a variable raised to the second power‚ like x2. When you graph a quadratic equation‚ you get a parabola‚ and the solutions to the quadratic equation represent where the parabola crosses the x-axis. A quadratic equation can be written in the form: quadratic equation‚ where a‚ b‚ and c are numbers (a ≠0)‚ and x is the variable. x is a solution (or a root) if it satisfies the equation ax2 +
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Ascertaining Mathematics With Equations Jesse J. Oliver Jr. Mathematics 126: Survey of Mathematical Methods Professor Matthew Fife Thursday‚ January 24‚ 2013 Ascertaining Mathematics With Equations The abstract science of a number‚ quantity and space that can be studied in its very own right or as it may be applied to other disciplines and subject matters in several aspects‚ one considers to be that of mathematics. The problem of testing a given number for “primality” has been known to
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The reason why the Drake Equation is not a successful science is because it would be impossible to calculate some of the elements in the equation. The elements would take too long to get an accurate sample to give a scientifically sound explanation. For instance how would you calculate fi (the fraction of intelligent life forms)‚ how do you define intelligent? Is intelligent like you and I‚ is it like a bird or a rat‚ could it be a plant? There is no way to truly determine what counts and doesn’t
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Explanations of conformity Why do we conform? Deutsch and Gerrard 1955 decided that there were 2 possible reasons why you would conform. They suggested that it was either due to Normative social influence or due to informational social influence. Normative social influence Need: - Humans have basic need to we want to feel accepted‚ approved and liked and as a member of a group How it leads to conformity: - in order to gain acceptance by others‚ we often conform to the
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Systems of linear equations‚ or a set of equations with two or more variables‚ are an essential part of finding solutions with only limited information‚ which happens to be exactly what algebra is. As a required part of any algebra student’s life‚ it is best to understand how they work‚ not only so an acceptable grade is received‚ but also so one day the systems can be used to actually find desired information with ease. There are three main methods of defining a system of linear equations. One way is
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