Journal of Adult Education Information Series‚ No. 1 Vol. 39‚ 2010 Grammar Instruction for Adult English Language Learners: A Task-Based Learning Framework Jiuhan Huang Assistant Professor Regent University Abstract Over the past few decades‚ grammar instruction has moved from its central position in traditional language teaching approaches to playing virtually no role in communicative approaches. This article first gives a historical perspective of grammar instruction. Then it outlines
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linear system. Different techniques are frequency chirp‚ coherence function and pseudoinverse. In chirp method‚ wideband excitation such as frequency chirp is used. Frequency response is obtained as the DFT of the output of the system for time-domain input. Inverse method uses SVD function to find pseudoinverse. Coherence function has been used to identify the system using MATL AB function tfestimate. The performances of the methods are demonstrated by means of experimental investigation. Keywords:-
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Lab 4 Question 4.1: % Program P4_1 % Evaluation of the DTFT clf; % Compute the frequency samples of the DTFT w = 0*pi:8*pi/511:2*pi; M=input(’Enter the value of M:’); num = (1/M)*ones(1‚M); den = [1]; h = freqz(num‚ den‚ w); % Plot the DTFT subplot(2‚1‚1) plot(w/pi‚abs(h));grid title(’Magnitude Spectrum |H(e^{j\omega})|’) xlabel(’\omega /\pi’); ylabel(’Amplitude’); subplot(2‚1‚2) plot(w/pi‚angle(h));grid title(’Phase Spectrum arg[H(e^{j\omega})]’) xlabel(’\omega /\pi’); ylabel(’Phase
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reading and writing in a second language across the curriculum. The course includes many practical activities for teachers to use with learners‚ and teachers will be encouraged to share their own practices. Teaching and learning process include: * Input by presenter; * Small group activities‚ workshops and discussion; * Opportunities to experience practical classroom activities; * Opportunities for participants to share their own practices; * Time for participants’ questions; The
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of the voltage loop by adding low-pass filter‚ so that a low distortion of the input current is easily achieved. This controller has been verified via simulation in Simulink using a continuous time plant model and a discrete time controller. Index Terms—power‚ factor‚ correction‚ boost‚ rectifier. I. INTRODUCTION. Single-phase power factor correction (PFC) circuits provide rectification of the line voltage to a regulated dc voltage while shaping the input current to be a sinusoid and in phase with
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Open-Loop Simulation ............................................................................ 2 B. PI Automatic Voltage Regulator ............................................................. 5 C. Single-Input Power System Stabilizer ................................................... 7 D. Dual-Input Power System Stabilizer...................................................... 9 III. Synergetic Control Theory for Power System Stabilizers .............................. 12 A. Discussion .....
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Figure 1 below. The two paths to the adder are typically referred to as the ‘I’ (inphase)‚ and ‘Q’ (quadrature)‚ arms. Not shown in Figure 1 is any bandlimiting. In a practical situation this would be implemented either at message level - at the input to each multiplier - and/or at the output of the adder. Probably both ! The motivation for QAM comes from the fact that a DSBSC signal occupies twice the bandwidth of the message from which it is derived. This is considered wasteful of resources. QAM
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3.1. Pipes and Filters In a pipe and filter style each component has a set of inputs and a set of outputs. A component reads streams of data on its inputs and produces streams of data on its outputs‚ delivering a complete instance of the result in a standard order. This is usually accomplished by applying a local transformation to the input streams and computing incrementally so output begins before input is consumed. Hence components are termed “filters”. The connectors of this style serve
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COGNITIVE MODELS (19.12.2012) 1. McLaughlin’s Attention – Processing Mode 2. Implicit and Explicit model 3. Long’s Interaction Hypothesis 1. McLaughlin’s Attention – Processing Mode Types of learning: a) Controlled processing -> typical of anyone learning a branch of new skill in which only a very few elements of the skill can be retained b) Automatic processes -> refer to processing in a more accomplished skill – our branch can manage hundreds and thousands of bits of information simultaneously
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Predictive Coding A. B. C. IV. V. VI. History of Speech & Audio Compression History of Speech Synthesis Analysis/Synthesis Techniques Human Speech Production LPC Model LPC Analysis/Encoding A. B. C. D. E. Input speech Voice/Unvoiced Determination Pitch Period Estimation Vocal Tract Filter Transmitting the Parameters VII. VIII. LPC Synthesis/Decoding LPC Applications A. B. C. D. Telephone Systems Text-to-Speech Synthesis Voice Mail Systems Multimedia IX. X. Conclusion References
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