Pumping Systems: Parallel and Series Configurations For some piping system designs‚ it may be desirable to consider a multiple pump system to meet the design requirements. Two typical options include parallel and series configurations of pumps. Specific performance criteria must be met when considering these options. Given a piping system which has a known design flow rate and head requirements‚ Qdes‚ hdes‚ the following pump selection criteria apply. Pumps in Parallel: Assuming that the pumps are
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3D Gradient Vector Flow Matlab Implementation Gradient Vector Flow (to the right) calculated on the volume to the left. Gradient Vector Flow (GVF) is a feature-preserving diffusion of gradient information. It was originally introduced by Xu and Prince to drive snakes‚ or active contours‚ towards edges of interest in image segmentation. But GVF is also used for detection of tubular structures and skeletonization. In this post I present a simple Matlab implementation of GVF for 3D images which
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Thoughts on a Still Night Jing Ye Si (Thoughts on a Still Night) is the fourth studio album of the famous Chinese folk singer Gong Lin Na‚ which was recorded in China in 2007. The producer is Gong’s husband‚ Robert Zollitsch. Jing Ye Si is originally one of the most famous Chinese poems by the great poet Li Bai inTang Dynasty. Gong was born in Gui Yang Province‚ which has a great population of different minority ethnic groups compared to other provinces. As a result‚ Gong absorbed the rich nutrition
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Jie Lei 311027954 从世说新语中看清谈：清谈的形式 清谈的内容以及清谈的影响 The “Pure Conversation” (qingtan) cultural movement 清谈的定义 The “Pure Conversation” (qingtan 清谈) cultural movement emerged in the Wei-Jin period and is defined as not only the approach that scholars communicate with each other‚ sharing their thoughts‚ but also a form that shows the main stream of the philosophy thoughts of the society in the Wei-Jin period. (Tang 1991‚ pg.18). 清谈兴起的原因：This essay will introduce the “Pure Conversation”(qingtan)
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The Software is the Instrument NATIONAL INSTRUMENTS Application Note 065 ® ® Measuring Temperature withThermistors – a Tutorial David Potter Introduction Thermistors are thermally sensitive resistors used in a variety of applications‚ including temperature measurement. This application note discusses this application of thermistors‚ including basic theory and how to interface thermistors to modern data acquisition systems. Thermistor Overview A thermistor is a piece of semiconductor
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1 (Sparse Matrix-Factorization). Given an input matrix Y factorize it is as Y = X1 X2 . . . Xs so as minimize the total sparsity si=1 π(Xi ). The above problem is a simplification of the non-linear version of the problem that is directly related to learning using deep networks. Problem 2 (Non-linear Sparse Matrix-Factorization). Given matrix Y ‚ minimize si=1 π(Xi ) such that σ(X1 .σ(X2 .σ(. . . Xs ))) = Y where σ(x) is the sign function (+1 if x > 0‚ −1 if x < 0 and 0 otherwise) and σ applied on
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Tri Vi Dang Email: td2332@columbia.edu Columbia University Spring 2013 Corporate Finance (ECON W4280) Meeting time: Tu‚ Th 4.10-5.25 Meeting place: Hamilton 503 Office address: IAB 1032 Office hours: Th 11.00-12.00 and other times by appointment Course Description The aim of this introductory course in corporate finance is to provide students with fundamental concepts for understanding firms’ financing decisions and the basic tools for the valuation of a corporation. This course
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Strengths of the research Throughout the studies‚ a number of investigators implemented thorough and practical approaches to determine reproductive outcomes following an abortion. Since a majority of the studies are longitudinal and based on factual‚ reproductive and obstetric data and history‚ the information obtained regarding the women participants is straightforward and clear. This allows it to be easily measured‚ coded‚ and compared with other variables to identify potential correlations. In
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Math 143 – ANOVA Analysis of Variance (ANOVA) 1 Recall‚ when we wanted to compare two population means‚ we used the 2-sample t procedures . Now let’s expand this to compare k ≥ 3 population means. As with the t-test‚ we can graphically get an idea of what is going on by looking at side-by-side boxplots. (See Example 12.3‚ p. 748‚ along with Figure 12.3‚ p. 749.) 1 Basic ANOVA concepts 1.1 The Setting Generally‚ we are considering a quantitative response variable as it relates to one or
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During my study in the World Civilizations class‚ it occurred to me that although many ancient civilizations established far apart and independent from each other‚ yet somehow we can trace tremendous evidences showing us that their cultures‚ beliefs‚ world views‚ traditions are somewhat similar to one another. I am very interested in discover more details about when those ancient civilizations was formed‚ the people at that time did not have effective transportations or contact methods like us today
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