A Client’s Guide To Site Investigation Introduction Why Carry Out a Site Investigation? The objective of this brief guide is to inform promoters of civil engineering and building projects of the importance of adequate site investigation for the successful completion of their project. It indicates what a site investigation is likely to comprise‚ the important role of the promoter‚ and the risk to the project of undertaking an inappropriate or inadequate site investigation. The design of a structure
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A. Lilienkamp‚ and D. L. Trumper Precision Motion Control Lab‚ MIT‚ Rm 35-030‚ 77 Mass. Ave‚ Cambridge‚ MA 02139 We have developed MATLAB software and a Simulink subsystem block which work in tandem to extract the transfer function (amplitude and phase) of a system using ‘swept sine’ excitation. The resulting dynamic signal analyzer provides a convenient tool for obtaining empirical Bode plots of system and controller dynamics within the dSPACE environment. Both the derived (Fourier) and raw (time
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process of phase conjugation in the frequency domain‚4–8 focuses sound from a source–receive array ~SRA! back to the probe source ~PS! which ensonified the SRA. The SRA receives the probe-source field‚ time reverses it ~phase conjugation in the frequency domain!‚ and then uses the time-reversed data as the excitation for an array of sources which are collocated with the receiving hydrophones. If the ocean environment does not change significantly during the two-way travel time‚ the phase-conjugate
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1. A 25 ohm resistor has an average power of 400 watts. Determine the maximum value of the current if it is a (a) sinusoidal‚ (b) triangular. 2. Determine the effective value Vrms of the voltage function given by v(t) = 100+25 sin 3wt + 10 sin 5wt volts. 3. What average power results in a 25 ohm resistor when it passes a current i(t) = 2+3 sin wt +2 sin2wt + 1 sin 3wt amperes. 4. Calculate Irms if i(t) = 50 + 40 sin wt amperes. 5. Calculate Irms if i(t) = 150 + 50 sin wt +
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Summary 3 The Practice of Co-operative Inquiry: Research ´with´ rather than ´on´ People (Heron & Reason) Table of contents 1 Introduction to co-operative inquiry 1 2 Four phases of co-operative inquiry 1 3 Different forms of co-operative inquiry 2 4 Co-operative inquiry cultures 2 5 Ways of knowing 2 6 Inquiry skills and validity procedures 2 7 Words and questions 3 Bibliography 4 Introduction to co-operative inquiry The article “The Practice of Co-operative Inquiry:
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Organisational Change Chapter 2 The Nature of Change 1 Introduction The chapter: Discusses a number of frameworks for categorising change. Explains why‚ in order to be effective‚ it is necessary to understand the differences between various types of change. 2 Objectives To: Emphasise the complex nature of organisational change; Describe and discuss the multi-dimensional nature of organisational change; Analyse change situations in order to choose appropriate methods of
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experiment‚ the student will be able to: (1) Determine the steady-state behavior of linear circuits driven by sinusoidal sources‚ (2) Use the oscilloscope to measure the phase difference between two sinusoidal signals‚ (3) Determine analytically the frequency response of a network‚ (4) Construct Bode plots relating the magnitude and phase response of the voltage ratio of a linear network as a function of frequency‚ and (5) Design primitive low- and high-pass filters using one resistor and one capacitor
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equation is given as We can control the flow of power by simple controlling the phase shift () i.e. by simply controlling which side leads the other. The power transfer for a single active bridge with a phase shift between the switching of s1 and s2 is given as:- Alpha being the phase shift described above and being the phase shift between primary and secondary sides and defining the phase shift between the primary and secondary voltages as – We get
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Mere static pictures do not do justice to Lissajous Figures. When the horizontal and vertical sine wave frequencies differ by a fixed amount‚ this is equivalent to constantly rotating the phase between them. The figure produced by this rotating phase appears to be a rotating 3D figure. In addition‚ as in 3D wireframe images‚ the figure can appear to rotate in either direction‚ depending on how your brain interprets it. It can also spontaneously reverse the direction of rotation. (In a real
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Technical Monograph n°2‚ 6th Edition Revised May 2008 Catalogue of pesticide formulation types and international coding system Code Term Definition AE Aerosol dispenser A container-held formulation which is dispersed generally by a propellant as fine droplets or particles upon the actuation of a valve. AL Any other liquid A liquid not yet designated by a specific code‚ to be applied undiluted. AP Any other powder A powder not yet designated by a specific
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