entropy of a discrete memoryless source
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
... coefficients are given to guarantee
that all the species are permanent. It is shown that these conditions are weaker than those of Liao
et al. 2008.
1. Introduction
Traditional Lotka-Volterra competitive ... exponentially for 2 ≤ i ≤ N, and u
i
t → X
∗
, where X
∗
is a certain solution of
a logistic equation. Teng 8 and Ahmad and Stamova 9 also studied the coexistence on a
nonautonomous Lotka-Volterra ... 4 Advances in Difference Equations
2. Proof of Theorem 1.2
The following lemma can be found in 10.
Lemma 2.1. Assume that A& gt;0 and y0 > 0, and further suppose that
(1)
y
n 1
≤ Ay
n
...
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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
... 395–401, 2003.
7 T. K. Kar and U. K. Pahari, “Modelling and analysis of a prey-predator system with stage-structure
and harvesting,” Nonlinear Analysis. Real World Applications, vol. 8, no. 2, ... 505–512,
2007.
6 T W. Hwang, “Global analysis of the predator-prey system with Beddington-DeAngelis functional
response,” Journal of Mathematical Analysis and Applications, vol. 281, no. 1, ... Dimitrov and H. V. Kojouharov, “Complete mathematical analysis of predator-prey models
with linear prey growth and Beddington-DeAngelis functional response,” Applied Mathematics and
Computation,...
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Báo cáo hoa học: " Research Article Permanence of a Discrete n-Species Schoener Competition System with Time Delays and Feedback Controls" pptx
Ngày tải lên :
21/06/2014, 20:20
... R. M. May, Theoretical Ecology, Principles and Applications, Sounders, Philadelphia, Pa, USA, 1976.
3 R. P. Agarwal, Difference Equations and Inequalities: Theory, Methods, and Applications, ... Wang and Z. Lu, “Global stability of discrete models of Lotka-Volterra type,” Nonlinear Analysis:
Theory, Methods & Applications, vol. 35, no. 7, pp. 1019–1030, 1999.
6 L. Bai, M. Fan, and ... disturbances which persist for a finite
period of time. In the language of control variables, we call the disturbance functions as
control variables. During the last decade, many scholars did...
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Tài liệu Báo cáo " A new natural source of Camphor from Cinnamomum longepetiolatum Costerm. apud Phamh. in Vietnam " doc
Ngày tải lên :
12/02/2014, 17:20
... timber of Cinnamomum Phoebe
and other genera was very valuable. The bark of
Cinnamomum cassia and the root of Lindera
aggregata were the famous drug in traditional
medicine. The fruit of Persea ... results of this study shows that Cinnamomum longepetiolatum Costerm. apud
Phamh. was a new natural source of camphor in Vietnam.
Keywords: Cinnamomum longepetiolatum, Lauraceae, Essential oil, camphor. ...
Lauraceae farmily has about 45 genera and
2000-2500 species, distributed in tropical and
subtropical regions of the world, but mostly in
tropical Southeastern Asia and Neotropical
America....
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- 0
Retrieval of the source location and mechanical descriptors of a hysteretically-damped solid occupying a half space by full wave inversion of the the response signal on its boundary doc
Ngày tải lên :
18/03/2014, 01:21
... dis-
cordances
What these tables reveal are that:
a) the retrieval errors of the various constitutive parameters are far from negligible, even for a
discordance of a single parameter that is as small as 10%;
b) ... obtain a reliable retrieval of the imaginary
part of ℑµ for ±10% discordance of any of the other mechanical descriptors or of x
1
.
On the other hand, it was shown that a ±10% discordance of ... to at least one solution, P
K
= p
K
.
This eventuality is highly improbable in real-life, in that one usually has only a vague idea a
priori of the value of at least one of the parameters of...
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Source investigation of a small event using empirical Green’s functions and simulated annealing ppt
Ngày tải lên :
23/03/2014, 13:20
...
criteria to find earthquakes for which this technique can be
applied.
In
the search for potential candidates
of
earthquake
couples, an automatic selection of the available data set was
performed ...
Fukuyama
&
768
Irikura
1986),
as well as regional and teleseismic body and
surface waveforms (Hartzell
1989;
Kanamori
ef
al.
1992;
Velasco, Ammon
&
Lay
1994).
The applicability ... two fault planes. The
shape and the area of the ruptured zone is very different in
the two cases. For the near-vertical plane, the rupture zone
has an elongated shape and may cover an area of...
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- 0
Báo cáo khoa học: "Improvement of a Whole Sentence Maximum Entropy Language Model Using Grammatical Features" potx
Ngày tải lên :
23/03/2014, 19:20
... we have sucessfully added gram-
matical features to a WSME language model us-
ing a SCFG to extract the grammatical informa-
tion. We have shown that the the use of gram-
matical features in a ... corpus was automatically labelled and man-
ually checked. There were two kinds of labelling:
POStag labelling and syntactic labelling. The
POStag vocabulary was composed of 45 labels.
The syntactic ... from a training sample. Each word in the
training sample has a part -of- speech tag (POStag)
associated to it. These POStags are considered as
word categories and are the terminal symbols of
our...
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the symbian os architecture sourcebook design and evolution of a mobile phone os
Ngày tải lên :
01/06/2014, 11:21
... Private Network
WAP Wireless Application Protocol
WDP Wireless Datagram Protocol
XIP Execute in place
Glossary of Terms
ABI Application binary interface
ADT Abstract data type
BAL Bearer Abstraction ... in
creating the system shared the sense that making software is a visionary
activity and that making good software, indeed the best possible soft-
ware, is as much a moral imperative as a business ... lifetime of five years of
7
Protea is the name of a flower native to South Africa. As it happens, Psion founder,
David Potter, and the first two CEOs of Symbian, Colly Myers and David Levin, all share a
connection...
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- 0
báo cáo hóa học: " Approximate entropy detects the effect of a secondary cognitive task on postural control in healthy young adults: a methodological report" docx
Ngày tải lên :
19/06/2014, 10:20
... Health Sciences, The University
of North Carolina at Chapel Hill, Chapel Hill, NC, USA and
3
HPER Biomechanics Laboratory, University of Nebraska at Omaha, Omaha, NE, USA
Email: James T Cavanaugh* ... produced not by a reallo-
cation of attention but by mechanical destabilization,
albeit along a temporal rather than a spatial dimension,
brought about by articulation and respiratory patterns
during ... displacement to
estimate the amount of postural sway in the AP plane.
Scores are calculated as the angular difference, expressed
as a percentage, between the amount of estimated AP pos-
tural sway...
- 7
- 603
- 0
Báo cáo hóa học: " On a boundary value problem of a class of generalized linear discrete-time systems" ppt
Ngày tải lên :
20/06/2014, 22:20
... canonical form of regular matrix
polynomials. Linear Algebra Appl. 385, 117–130 (2004)
doi:10.1186/1687-1847-2011-51
Cite this article as: Dassios: On a boundary value problem of a class of generalized ... (1980)
5. Gantmacher, FR: The Theory of Matrices, Volume I and II. Chelsea (1959)
6. Datta, BN: Numerical Linear Algebra and Applications. Cole Publishing Company (1995)
7. Dassios, IK: Solutions of ... springeropen.com
Dassios Advances in Difference Equations 2011, 2011:51
http://www.advancesindifferenceequations.com/content/2011/1/51
Page 9 of 9
RESEARCH Open Access
On a boundary value problem of a class of
generalized...
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- 0
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
... Correspondence:
hongyinglu543@163.com;
wwguo@dufe.edu.cn
School of Mathematics and
Quantitative Economics, Dongbei
University of Finance & Economics,
Dalian, Liaoning 116025, PR China
Abstract
A discrete semi-ratio-dependent predator-prey system ... 16(7):1069-1075.
4. Nindjina AF, Aziz-Alaoui MA, Cadivel M: Analysis of a predator-prey model with modified Leslie-Gower and Holling-
type II schemes with time delay. Non-linear Anal. Real World Appl 2006, 7(5):1104-1118.
5. ... Z: Permanence and global attractivity of the discrete Gilpin-Ayala type population model.
Comput. Math. Appl 2007, 53(8):1214-1227.
19. Wang L, Wang MQ: Ordinary Difference Equation. Xinjiang University...
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- 0
báo cáo hóa học:" Research Article A Discrete Equivalent of the Logistic Equation" potx
Ngày tải lên :
21/06/2014, 11:20
... Diff
erence
Equations and Applications, vol. 9, no. 10, pp. 969–987, 2003.
30 Y. Song and C. T. H. Baker, “Linearized stability analysis of discrete Volterra equations,” Journal of
Mathematical Analysis and ... nonlinear differential equations,” Journal of Mathematical Analysis
and Applications, vol. 124, no. 2, pp. 339–380, 1987.
40 E. K. Ifantis, “Global analytic solutions of the radial nonlinear wave ... the growth
of a population Pt under the assumptions that the rate of growth of the population was
proportional to
A1 the existing population and
A2 the amount of available resources.
When...
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- 310
- 0
báo cáo hóa học:" Research Article Oscillation of Solutions of a Linear Second-Order Discrete-Delayed Equation" docx
Ngày tải lên :
21/06/2014, 18:20
... 60–82, Coll. Judea Samaria, Ariel, Israel, 1993.
9 Y. Domshlak and I. P. Stavroulakis, “Oscillations of first-order delay differential equations in a critical
state,” Applicable Analysis, vol. 61, ... Solutions of a Linear Second-Order
Discrete- Delayed Equation
J. Ba
ˇ
stinec,
1
J. Dibl
´
ık,
1, 2
and Z.
ˇ
Smarda
1
1
Department of Mathematics, Faculty of Electrical Engineering and Communication,
Brno ... Dorociakov
´
a and R. Olach, “Existence of positive solutions of delay differential equations,” Tatra
Mountains Mathematical Publications, vol. 43, pp. 63–70, 2009.
11 I. Gy
¨
ori and G. Ladas,...
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- 0
Báo cáo hóa học: " Research Article A Method for Source-Microphone Range Estimation in Reverberant Environments Using Arrays of Unknown Geometry" ppt
Ngày tải lên :
22/06/2014, 19:20
... 2006.
[12] G. Marsaglia, “Ratios of normal variables and ratios of sums
of variables,” Journal of the American Statistical Association,
vol. 60, no. 309, pp. 193–204, 1965.
[13] EASE, “Enhanced acoustic ... In reality, speech is both a lowpass
and often harmonic signal. This poses particular problems.
We have assumed F
a, b
to be a zero-mean, normal random
variable. The analysis and experimental evidence ... reverberation time,” Journal
of the Acoustical Soc iety of America, vol. 112, no. 6, pp. 2583–
2588, 2002.
[11] G. Marsaglia, “Ratios of normal variables,” Journal of Statisti-
cal Software, vol. 16, no....
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