speed control of ac motor using triac ppt
Tài liệu Stability and Control of Large-Scale Dynamical Systems pptx
Ngày tải lên :
12/02/2014, 16:20
... equiva-
lent to the existence of a control vector Lyapunov function. Moreover, using
control vector Lyapunov functions, we construct a universal decentralized
feedback 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-varying
set in the state space, a distributed control ... Conservation of Energy and the First Law
of Thermodynamics 182
9.3 Nonconservation of Entropy and the Second Law
of Thermodynamics 187
9.4 Nonconservation of Ectropy 189
9.5 Semistability of Discrete-Time...
- 389
- 723
- 0
Hepatitis and Liver Cancer: A National Strategy for Prevention and Control of Hepatitis B and C ppt
Ngày tải lên :
06/03/2014, 01:20
... 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...
- 191
- 457
- 0
Báo cáo khoa học: Functional interplay between viral and cellular SR proteins in control of post-transcriptional gene regulation pptx
Ngày tải lên :
23/03/2014, 06:20
... (2002)
Functional inactivation of the SR family of splicing
factors during a vaccinia virus infection. EMBO Rep 3,
1088–1093.
75 Hagiwara M (2005) Alternative splicing: a new drug
target of the post-genome ... in
hypophosphorylation of SR proteins and, conse-
quently, downregulation of cellular pre-mRNA splicing
[29,30]. ICP27 acts through the nuclear export receptor
TAP ⁄ NXF1 of host cells to facilitate viral ... core–DDX3 interaction, a mild activation of
HCV IRES-mediated translation has been observed
after overexpression of DDX3 [48]. Moreover, it has
also been shown that depletion of DDX3 from human
hepatoma...
- 10
- 317
- 0
Analysis and Control of Corn plex Nonlinear Processes pptx
Ngày tải lên :
28/03/2014, 22:20
... 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,
.)...
- 453
- 636
- 0
Analysis and Control of Linear Systems - Chapter 0 pptx
Ngày tải lên :
09/08/2014, 06:23
... 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 A
m
... 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 H
2
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...
- 16
- 344
- 0
Analysis and Control of Linear Systems - Chapter 1 pptx
Ngày tải lên :
09/08/2014, 06:23
... 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
()
X
p 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...
- 42
- 331
- 0
Analysis and Control of Linear Systems - Chapter 4 ppt
Ngày tải lên :
09/08/2014, 06:23
...
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
{}
m
ccc , ,,
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...
- 32
- 615
- 0
Analysis and Control of Linear Systems - Chapter 5 pptx
Ngày tải lên :
09/08/2014, 06:23
... of ν
0
.
142 Analysis and Control of Linear Systems
A discrete-time deterministic signal y[k],k ∈Zis, by definition, a sequence of
complex numbers:
y =
y[k]
k∈Z
In short, we often speak of ... transform of the frequency cisoid f
0
is an
impulse centered in f
0
. By using the linearity of the Fourier transform, we easily
obtain the Fourier transform of a real sine curve, irrespective of its ... transform of the
convolution integral is the product of transforms:
(y
1
⊗ y
2
)
=
y
1
y
2
[5.9]
152 Analysis and Control of Linear Systems
Figure 5.1. Typical power spectrum of an MA (left)
or...
- 18
- 414
- 0
Analysis and Control of Linear Systems - Chapter 11 pptx
Ngày tải lên :
09/08/2014, 06:23
... 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
o
A
sA
(
⎯ο⎯
) .of
mo
'
AA
sAS
and of
m
A
B
(
⎯⎯
) in the case of
4
o
o
1
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
+=
T
sA
... Robust Single-Variable Control through Pole Placement 349
By replacing
u
by yc
nn
ρ
τ
+−
n
x in the expressions of x
1
, x
2
, x
n
we obtain
matrices
A and B of the equation of state:
⎥
⎥
⎥
⎥
⎥
⎥
⎦
⎤
⎢
⎢
⎢
⎢
⎢
⎢
⎣
⎡
−−+
−−+
−−+
=
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎦
⎤
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎣
⎡
−
−
−
−
−
=
−−−−
−
−
1111
1111
0000
1
2
2
1
0
10...
- 46
- 454
- 0
Analysis and Control of Linear Systems - Chapter 12 pptx
Ngày tải lên :
09/08/2014, 06:23
... 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:
)()()()(
11
tqRtqS
yoptu
εε
−−
−= [12.24]
392 Analysis and Control of Linear Systems
Hence, the calculation of the future control...
- 26
- 286
- 0
Analysis and Control of Linear Systems - Chapter 13 pptx
Ngày tải lên :
09/08/2014, 06:23
... 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 think
2
of control
2
H or
∞
H . We will prefer working in Hardy’s space
2
H...
- 46
- 379
- 0
Analysis and Control of Linear Systems - Chapter 16 ppt
Ngày tải lên :
09/08/2014, 06:23
... 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:
)(
~
)(
~
1
λλ
−
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...
- 23
- 331
- 0
Neuronal Control of Eye Movements - part 3 ppt
Ngày tải lên :
10/08/2014, 03:20
... to
those of search coil systems. The accuracy of VOG devices is also comparable to
that 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 specific
roles of ... and to characterize their interactions in the generation of saccades.
Different kinds of saccades can be distinguished. Resetting saccades are a
major component of reflectory optokinetic and vestibular...
- 21
- 714
- 0
