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Free Ebook PHP 5 Power Programming

... book is an introduction to the advanced features new to PHP 5. It is written for PHP programmers who are making the move to PHP 5. ... to working in the Zend Studio IDE. Download Free Ebook PHP 5 Power Programming (PHP Programming) ...

Story - acrobat - 03/06/2008 - 15:36 - 0 comments - 0 attachments

PDF Ebook Free Theorems for Sublanguages of Haskell

... are called parametricity results, or more commonly, free theorems. First only considered for the polymorphic lambda calculus of ... Bibliography Index Symbols Download PDF Ebook Free Theorems for Sublanguages of Haskell (PHP Programming) ...

Story - antoq - 11/11/2010 - 07:14 - 0 comments - 0 attachments

Ebook Internet Payment Gateway Integration Guide First Data API

... builds on a set of open standards. In short, you are free to choose any technology you want (e.g. J2EE, .NET, PHP, ASP, etc.) for ... messages when using the Java Client Download PDF Ebook Internet Payment Gateway Integration Guide First Data API ...

Story - wulan - 11/14/2009 - 03:45 - 0 comments - 0 attachments


Aeronautics Ebook: Mixing in gas phase turbulent jets

Submitted by acrobat on Sun, 10/19/2008 - 07:35

This free ebooks is an experimental investigation of the mixing of the nozzle fluid of a round, turbulent jet with the entrained reservoir fluid, using laser-Rayleigh scattering methods. The measurements, at Reynolds numbers of 5,000 and 16,000, cover the axial range from 20 to 90 jet exit diameters and resolve the full range of temporal and spatial concentration scales. The measured mean and rms values of the concentration, and the mean scalar dissipation rate, when estimated from the time derivative of concentration, are consistent with jet similarity laws. Concentration fluctuation power spectra are found to be self-similar along rays emanating from the virtual origin of the jet, and are consistent with the universal form of scalar spectra proposed by Gibson (1968 II). The probability density functions for the concentration, the time derivative of concentration, and the square of the time derivative of concentration, are compiled and are also found to be self-similar along rays. Features of the measured distributions and spectra are consistent with the existence of large-scale structures within the flow that span the local diameter of the jet's turbulent cone. On the centerline of the jet, the scaled probability density function of jet gas concentration is found to be almost independent of the Reynolds number while the local mixing rate in the inner part of jet is not. The usual assumptions concerning isotropy and correlation of derivatives are found to lead to erroneous results for the probablility density function of the scalar dissipation rate.

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Ebook House Prices and Home Ownership: a Cohort Analysis

Submitted by puput on Mon, 04/25/2011 - 06:53

The birth cohort born in 1967 turned twenty-two in 1989. Some were graduating from university, while others had been in the labour market a few years. Most aspired to starting families and owning their own homes. In the United Kingdom, these twenty-two year olds faced a housing market in which average prices had been rising for seven years, and had risen 70% in real terms in the last four years. The ratio of average house prices to average earnings was 5.5. By contrast, when the cohort of 1975 turned twenty-two in 1997, house prices were more than 20% lower than in 1989. Incomes had been catching up with prices, so that the house price to earnings ratio was 4. In short, this cohort faced a very different housing market than the cohort that turned twenty-two eight years earlier. Do these differences matter?

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Ebook Factor Demand Linkages, Technology Shocks and the Business Cycle

Submitted by wulan on Mon, 06/21/2010 - 07:05

Input output linkages are a pervasive feature of modern economies. Neglecting them could lead to a significant loss in understanding the dynamics of the supply side of an economy. Intermediate goods used in one sector are produced in other sectors, which in turn use the output from the first sector as an input to their own production. Therefore there are complex circular networks of input output interactions that need to be taken into account. The presence of an intermediate input channel is emphasized by Hornstein and Praschnik (1997) and recently analyzed in detail in Kim and Kim (2006).

In this paper we consider explicitly the empirical relevance of this channel. We study fluctuations at the sectoral and the aggregate level and we show that it is important to model the interactions between sectors if we want to fully understand the propagation of shocks across the economy. Typically, reduced form time series methods, in conjunction with the long run identifying assumptions, are used to disentangle disturbances to an economy. With few exceptions, the literature has applied these methods to aggregate time series. However, modelling aggregate time series directly implies that sectors are relatively homogeneous and most importantly, that interactions among sectors are of second order importance for aggregate fluctuations.

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