example of closed loop system with block diagram
Báo cáo toán học: " Nonexistence of positive solutions of an integral system with weights" pdf
Ngày tải lên :
20/06/2014, 21:20
... Nonexistence of positive solutions of an integral system with weights
Zhengce Zhang
School of Mathematics and Statistics, Xi’an Jiaotong University,
Xi’an, 710049, People’s Republic of China
Email ... monotonic-
ity of the positive solutions for a class of integral systems with weights. We use a
new type of moving plane method introduced by Chen–Li–Ou. Our new ingredient
is the use of Hardy–Littlewood–Sobolev ... decreasing with respect to some point in
R
N
.
Proof of Theorem 1.2. We show that u and v are symmetric with respect to some
plane parallel x
1
= 0. Indeed, if λ
0
< 0, such as the steps of Theorem...
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Báo cáo toán học: " Nonexistence of positive solutions of an integral system with weights" docx
Ngày tải lên :
20/06/2014, 21:20
... Nonexistence of positive solutions of an integral system with weights
Zhengce Zhang
School of Mathematics and Statistics, Xi’an Jiaotong University,
Xi’an, 710049, People’s Republic of China
Email ... monotonic-
ity of the positive solutions for a class of integral systems with weights. We use a
new type of moving plane method introduced by Chen–Li–Ou. Our new ingredient
is the use of Hardy–Littlewood–Sobolev ... existence of positive entire solutions of elliptic Hamitonian systems.
Comm. Partial Diff. Equ. 23(3–4), 577–599 (1998)
[28] Souto, MA: A priori estimates and existence of positive solutions of nonlinear...
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PSPICE simulation of two mass vibratory conveying system with electromagnetic drive
Ngày tải lên :
03/01/2014, 19:16
... which is a consequence of exertion of the
mechanical sub -system on the electromagnetic sub-
system.
IV. M
ATHEMATICAL
M
ODEL OF
T
HE
VCS
Description of one type of two-mass electromagnetic ... transporting system
(LCE with material). In order to achieve dynamic model
of this system, we will divide the system into two sub-
systems, shown in Fig. 5.
Fig. 5. Simplification of the ... f
res
of the system is equal to
mains (AC source) frequency f =50Hz.
A. Phase control
Fig. 7. Simulation scheme of power converter with phase
control
Simulation circuit with phase...
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Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt
Ngày tải lên :
25/01/2014, 13:20
... variables of the coupled systems.
Mechatronics Kevin Craig
DC Motor / Tachometer Closed- Loop Speed Control System 17
Mechatronics Kevin Craig
DC Motor / Tachometer Closed- Loop Speed Control System ... Testing of the Closed- Loop System and Comparison with Predicted
Response
The final stage in the control development process is to experimentally determine the
performance of the final, closed- loop ... Tachometer Closed- Loop Speed Control System 24
Mechatronics
DC Motor / Tachometer Closed- Loop Speed Control
System
1. Introduction
This case study is a dynamic system investigation of an...
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Tài liệu Báo cáo khoa học: Control of the coagulation system by serpins Getting by with a little help from glycosaminoglycans pptx
Ngày tải lên :
20/02/2014, 02:21
... many of the principal procoagulant compo-
nents of the system are serine proteases, regulation of
the system is principally by the action of serine protease
inhibitors. One major class of serine ... InhibitorNative Heparin Cofactor 2
Fig. 1. The structures of serpins controlling
thrombin. The structures of AT with and
without the heparin pentasaccharide bound,
heparin cofactor II and cleaved ... increase the rate of interaction
with target proteases. The interaction of AT with hep-
arin is clearly the most understood in structural terms,
although a number of elements of the conformational
change...
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báo cáo hóa học:" Detection of postoperative granulation tissue with an ICG-enhanced integrated OI-/X-ray System" docx
Ngày tải lên :
18/06/2014, 15:20
... scans without X-rays did not allow an association of
the area of fluorescence with the level of the lumbar spine.
The Fusion of OI data with X-rays allowed an accurate
anatomical localization of ... certain
advantages of using a high dose of 10 mg/kg of ICG, as
opposed to a lower dose of 1 mg/kg. The dose of 10 mg/
kg of ICG provided a stronger and prolonged enhance-
ment of the granulation ... OI scans of specimens (Figure 5) from rats of the
experimental group B showed a higher enhancement of
the spine at the location of surgery (11960 ± 695) com-
pared to the enhancement of the corresponding...
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Báo cáo hóa học: " The role of feed-forward and feedback processes for closed-loop prosthesis control" doc
Ngày tải lên :
19/06/2014, 08:20
... feedback.
A within-subjects ANOVA, with f actors of visual feedback
condition (light block/ dark block) , tactile feedback condition
(with vibrotactile feedback/without vibrotactile feedback)
and ... error. Data are
from two groups of subjects, one with vibrotactile feedback (N = 6), one without vibrotactile feedback (N = 6). (A) Comparison of within-subject
factors of visual feedback condition ... ANOVA, with factors o f object weight
(heavy object/lightweight object), visual fe edback
condition (light block/ dark block) and tactile feedback
condition (with vibrotactile feedback/without...
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Báo cáo hóa học: " Dynamics of a delayed discrete semi-ratiodependent predator-prey system with Holling type IV functional response" pptx
Ngày tải lên :
21/06/2014, 03:20
... that
(H
2
)
r
l
1
>
a
u
12
M
2
m
2
holds. Then system (1.3) is permanent.
Proof.Letx(k)=(x
1
(k), x
2
(k))
T
be any positive solution of system ( 1.3) with initial
conditions (1.4), from the first equation of the system (1.3), ... (1.3) assure that the solution of system (1.3) with
initial conditions (1.4) remains positive.
The principle aim of this article is to study t he dynamic behaviors of system (1.3),
such as permanence, ... permanent property of the system (1.3). We
study globally attractive property of the system (1.3) and the periodic property of sys-
tem (1.3). At last, the conclusion ends with brief remarks.
Lu...
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báo cáo hóa học:" Research Article Note on the Persistent Property of a Discrete Lotka-Volterra Competitive System with Delays and Feedback Controls" pptx
Ngày tải lên :
21/06/2014, 11:20
... 2.28
This completes the proof.
3. An Example
In this section, we give an example to illustrate that 1.10 does not imply 1.9. Consider the
two-species system with delays and feedback controls ... Persistent Property of a Discrete
Lotka-Volterra Competitive System with Delays
and Feedback Controls
Xiangzeng Kong,
1, 2
Liping Chen,
1, 2
and Wensheng Yang
1, 2
1
Key Lab of Network Security ... Lotka-Volterra competitive system with
delays and feedback controls. Recently, in 1 Liao et al. considered the following general
nonautonomous discrete Lotka-Volterra competitive system with delays and...
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báo cáo hóa học:" Research Article The Permanence and Extinction of a Discrete Predator-Prey System with Time Delay and Feedback Controls" ppt
Ngày tải lên :
21/06/2014, 11:20
... conclusion of Theorem 3.2 holds. This completes the
proof of Theorem 3.2.
In order to obtain the permanence of the component yn of system 1.3, we next
consider the following single-specie system with ... survival
rates. Of practical interest in ecosystem is the question of whether an ecosystem can withstand
those unpredictable forces which persist for a finite period of time or not. In the language of
control ... →∞
u
2
n
<M,
3.1
for any positive solution xn,yn,u
1
n,u
2
n of system 1.3.
Proof. Given any solution xn,yn,u
1
n,u
2
n of system 1.3, we have
Δu
1
n 1
≤ r
n
− e
1
n
u
1
n
,...
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báo cáo hóa học:" Research Article Dynamical Analysis of a Delayed Predator-Prey System with Birth Pulse and Impulsive Harvesting at Different Moments" pdf
Ngày tải lên :
21/06/2014, 11:20
... 0, 0,
yt
of System 2.1 with 2.2 is equivalent to the global attraction of prey-extinction periodic
solution 0,
yt of System 2.3. So we only devote to System 2.3 with 2.4. Since
re
−wτ
1
<
kβ
km ... completes the proof.
The next work is to investigate the permanence of the system 2.4. Before starting our
theorem, we give the definition of permanence of system 2.4.
Definition 4.2. System 2.1 ... all solutions of System 2.1 with 2.2
are uniformly ultimately bounded. The conditions of the globally attractive prey-extinction
boundary periodic solution of System 2.1 with 2.2 are...
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Báo cáo hóa học: "Research Article Spectrum Sharing in an ISM Band: Outage Performance of a Hybrid DS/FH Spread Spectrum System with Beamforming" docx
Ngày tải lên :
21/06/2014, 19:20
... probability of a DS/FH system; Impact of the
number of users, the number of antenna elements M
= 2,
processing gain G
DS
= 50, the number of interferers is J
1
= 1, J
2
=
2, J
3
= 3, duty cycles of interferes ... Outage probability of a DS/FH system, impact of the
duty cycle of interferers, the number of antenna elements M
= 2,
processing gain G
DS
= 50, the number of users K = 40, the number
of interferers ... Outage probability of a DS/FH system; Impact of the
number of interferers, the number of antenna elements M
= 2,
processing gain G
DS
= 50, the number of users K = 40, duty cycles
of interferes are...
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Báo cáo hóa học: " Research Article Interior Controllability of a 2×2 Reaction-Diffusion System with Cross-Diffusion Matrix" pdf
Ngày tải lên :
21/06/2014, 20:20
... 2.16.
3. Proof of the Main Theorem
In this section we will prove the main result of this paper on the controllability of the linear
system 2.8. But, before we will give the definition of approximate ... system, 2.8 is approximately controllable on 0,τ.
Proof. We will apply Theorem 3.2 to prove the approximate controllability of system 2.8.
With this purpose, we observe that
B
∗
ω
B
ω
,T
∗
t
z ... {P
j
}
j≥1
two families of bounded linear
operator in Z ,with{ P
j
}
j≥1
a family of complete orthogonal projection such that
A
j
P
j
P
j
A
j
,j≥ 1. 2.9
Define the following family of linear operators:
T
t
z...
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Báo cáo hóa học: "Research Article Epileptic Seizure Prediction by a System of Particle Filter Associated with a Neural Network" doc
Ngày tải lên :
21/06/2014, 20:20
... period. The feature of a “peak” can
be described by the mean value (with threshold of
±10%
of the previous mean value), the variance before it (with
threshold of
±5% of the mean of previous variance), ... by a System of Particle Filter
Associated with a Neural Network
Derong Liu,
1
Zhongyu Pang,
2
and Zhuo Wang
2
1
The Key Laboratory of Complex Systems and Intelligence Science, Institute of Automation, ... number of particles, we develop a novel
algorithm to combine particle filters with neural networks.
The strategy of backpropagation neural networks can be used
to adjust particles in tail area with...
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