speed control of ac motor using triac ppt
Tài liệu Stability and Control of Large-Scale Dynamical Systems pptx
... equiva-lent to the existence of a control vector Lyapunov function. Moreover, using control vector Lyapunov functions, we construct a universal decentralizedfeedback control law for a decentralized ... prob-lem of coordination control for multiagent interconnected systems. Specif-ically, by characterizing a moving formation of vehicles as a time-varyingset in the state space, a distributed control ... Conservation of Energy and the First Law of Thermodynamics 1829.3 Nonconservation of Entropy and the Second Law of Thermodynamics 1879.4 Nonconservation of Ectropy 1899.5 Semistability of Discrete-Time...
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Hepatitis and Liver Cancer: A National Strategy for Prevention and Control of Hepatitis B and C ppt
... Develop accurate estimates of the burden of acute hepatitis B and hepatitis C in United States 2. Identify chronic cases of hepatitis B and C and measure prevalence x Develop accurate estimates of ... National Academy of Sciences, the National Academy of Engineering, the Institute of Medicine, and the National Research Council: ã Download hundreds of free books in PDF ã Read thousands of books ... of close household and sexual contacts of infected people to be tested for HBV and HCV and encourage hepatitis B vaccination of close contacts. Immunization The longstanding availability of...
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Báo cáo khoa học: Functional interplay between viral and cellular SR proteins in control of post-transcriptional gene regulation pptx
... (2002)Functional inactivation of the SR family of splicingfactors during a vaccinia virus infection. EMBO Rep 3,1088–1093.75 Hagiwara M (2005) Alternative splicing: a new drugtarget of the post-genome ... inhypophosphorylation of SR proteins and, conse-quently, downregulation of cellular pre-mRNA splicing[29,30]. ICP27 acts through the nuclear export receptorTAP ⁄ NXF1 of host cells to facilitate viral ... core–DDX3 interaction, a mild activation of HCV IRES-mediated translation has been observedafter overexpression of DDX3 [48]. Moreover, it hasalso been shown that depletion of DDX3 from humanhepatoma...
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Analysis and Control of Corn plex Nonlinear Processes pptx
... example [83, 84, 871. Both reactions are studied in the SFB 555. The classical BZ reaction is a catalytic oxidation of malonic acid, using bromate in an acidic environment. Experimentally ... sum of an element of the'group orbit SE(2)u, and a small element of an infinite- dimensional subspace V of X" which corresponds to the stable eigenspace of the linearized flow. ... := L2(R2,RN). The fractional power space X" is an interpolation space which is more regular than L2(R2, RN) but less regular than the Sobolev space H2(R2,RN) of functions u(t, .)...
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Analysis and Control of Linear Systems - Chapter 0 pptx
... Management of saturations 349 11.5. Methodology 354 11.5.1. Intuitive approach 354 11.5.2. Reduction of the noise on the control by choice of degrees 356 11.5.3. Choice of the dynamics of Am ... elements of modeling and identification. All modern control theories rely on the availability of mathematical models of processes to control them. Modeling is therefore upstream of the control ... 421 13.2.7. Discretization of the H2 problem 423 13.3. Data of a feedback control problem 426 13.3.1. Model of the process 427 13.3.2. Modeling the environment of the system to adjust 428...
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Analysis and Control of Linear Systems - Chapter 1 pptx
... response of the system to the Dirac impulse, is a characteristic of the system’s behavior and is called an impulse response. If we suppose that the system preserves the continuity of the input, ... 20 Analysis and Control of Linear Systems Table 1.1 sums up the features of a system’s transfer function, the existence conditions of its frequency response and the possibility of performing ... domains of ()Xp and ()Yp The Laplace transform also makes it possible to determine the behavior at the time limits of a causal signal with the help of the following two theorems. THEOREM OF...
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Analysis and Control of Linear Systems - Chapter 4 ppt
... The controllability indices and the invariant factors of the non-controllable part (if it exists) of the pair (A, B) (see section 4.2.3) form a set of full invariants under the action of the ... “traditional” definition of controllability indices, noted by {}mccc , ,,21 where m is the size of the control space, we recall that the general characterization of minimal indices per columns ... possible solutions of these equations are in fact classified and ordered in terms of degrees. If x(p) is in the core of [pE-H], the vector obtained by multiplying each component of x(p) by a same...
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Analysis and Control of Linear Systems - Chapter 5 pptx
... of ν0. 142 Analysis and Control of Linear SystemsA discrete-time deterministic signal y[k],k ∈Zis, by definition, a sequence of complex numbers:y =y[k]k∈ZIn short, we often speak of ... transform of the frequency cisoid f0is animpulse centered in f0. By using the linearity of the Fourier transform, we easilyobtain the Fourier transform of a real sine curve, irrespective of its ... transform of theconvolution integral is the product of transforms:(y1⊗ y2)=y1y2[5.9] 152 Analysis and Control of Linear SystemsFigure 5.1. Typical power spectrum of an MA (left)or...
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Analysis and Control of Linear Systems - Chapter 11 pptx
... B and C are matrices of adequate size and x the state vector. The control of this process can thus be done by the technique of pole placement using an observer [KWA 72] according to the diagram ... and not “s”. 366 Analysis and Control of Linear Systems Figure 11.17. Evolution of oAsA(⎯ο⎯) .of mo'AAsASand of mAB(⎯⎯) in the case of 4oo1⎟⎟⎠⎞⎜⎜⎝⎛+=TsA ... Robust Single-Variable Control through Pole Placement 349 By replacing u by ycnnρτ+−nx in the expressions of x1, x2, xn we obtain matrices A and B of the equation of state: ⎥⎥⎥⎥⎥⎥⎦⎤⎢⎢⎢⎢⎢⎢⎣⎡−−+−−+−−+=⎥⎥⎥⎥⎥⎥⎥⎥⎥⎦⎤⎢⎢⎢⎢⎢⎢⎢⎢⎢⎣⎡−−−−−=−−−−−−1111111100001221010...
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Analysis and Control of Linear Systems - Chapter 12 pptx
... study of stability of the corrected loop and thus the characterization of stability of the elaborated predictive control, which is from that moment on possible for a set of parameters of the ... machine-tools (cutting the pieces), of the control of robots arms, of monitoring the temperature profile of the applications in home automation, etc. 12.1.2. Explicit prediction of future behavior The ... regulator of this restated problem in terms of error signals: )()()()(11tqRtqSyoptuεε−−−= [12.24] 392 Analysis and Control of Linear Systems Hence, the calculation of the future control...
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Analysis and Control of Linear Systems - Chapter 13 pptx
... question of defining the means of action necessary or useful for the achievement of the control objectives. The action magnitudes are reunited into a control vector noted by u. Any other means of action ... character of SSC The properties of the feedback control system obtained according to the standard state control (SSC) procedure are independent of the state representation of the model of the ... minimization of the judiciously selected standard of functional calculus. When we think of optimal control, we initially think2 of control 2H or ∞H . We will prefer working in Hardy’s space 2H...
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Analysis and Control of Linear Systems - Chapter 16 ppt
... types of usage of this algebra are presented in the field of modeling and control. 16.5.1. Modeling One of the methods of signal and control processing consists of designing models capable of ... consists of seeking the controller in a factorized form: )(~)(~1λλ−QP 524 Analysis and Control of linear Systems Generally, the existence of the Euclidian division implies the existence of ... (stability, etc.) and the characteristics of the elements of the body of fractions (poles, etc.) can be established. The second part pertains to the construction of the systems: serialization...
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Neuronal Control of Eye Movements - part 3 ppt
... tothose of search coil systems. The accuracy of VOG devices is also comparable tothat of the search coil, but it depends on the ability of the subjects to fixate accu-rately. System noise and accuracy ... under-standing of motor control and sensorimotor processing at large. The neural circuitry control- ling saccadic eye movements is now understood at a level that is sufficient to link the specificroles of ... and to characterize their interactions in the generation of saccades.Different kinds of saccades can be distinguished. Resetting saccades are amajor component of reflectory optokinetic and vestibular...
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