Results 241 to 250 of about 498,134 (298)

Amyloid-like Structures in Marine Adhesive Proteins. [PDF]

Mar Drugs
Santos MR, Henriques BJ, Santos R.
europepmc   +1 more source

High-resolution structure of proIAPP(1-48) fibrils suggests a mechanistic pathway for diabetes-associated IAPP fibril polymorphs. [PDF]

RSC Chem Biol
Valli D, Maj M.
europepmc   +1 more source

Strained 2D Semiconductor Lateral Heterojunctions via Grayscale Thermal-Scanning Probe Lithography. [PDF]

Small Sci
Zambito G, Ferrando G, Barelli M, Ceccardi M, Caglieris F, Marrè D, Bisio F, Buatier de Mongeot F, Giordano MC.   +8 more
europepmc   +1 more source

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Almost periodic sequence solutions of a discrete Lotka–Volterra competitive system with feedback control

Nonlinear Analysis: Real World Applications, 2009
The authors study the existence and uniqueness of almost periodic solutions for the following discrete Lotka-Volterra competitive system with feedback control \[ \begin{aligned} x_1(n+1) &= x_1(n)\exp\{r_1(n)(1- x_1(n)K^{-1}_1(n)- \mu_2(n)x_2(n)- b_1(n)u_1(n))\},\\ x_2(n+ 1) &= x_2(n)\exp\{r_2(n)(1- x_2(n)K^{-1}_2(n)- \mu_1(n)x_1(n)- b_2(n) u_2(n))\},\\
Chengying Niu, Xiaoxing Chen
semanticscholar   +5 more sources

Global Attractivity of Almost Periodic Sequence Solutions of Delayed Discrete-Time Neural Networks

Arabian Journal for Science and Engineering, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yan Ji
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Empirical determination of the frequencies of an almost periodic sequence

Proceedings of 8th Workshop on Statistical Signal and Array Processing, 1996
This note is concerned with the problem of determination of the countable set /spl Lambda/={/spl lambda//sub 1/, /spl lambda//sub 2/, ...} of frequencies belonging to an almost periodic sequence by methods in which a finite number of frequencies {/spl lambda//sub 1//sup (n)/, /spl lambda//sub 2//sup (n)/, ..., L(K/sub n/)/sup (n)/}=/spl Lambda//sub n ...
D. Dehay, H. Hurd
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Almost Perfect Sequences and Periodic Complementary Sequence Pairs over the 16-QAM Constellation

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2012
SUMMARY Based on quadriphase perfect sequences and their cyclical shift versions, three families of almost perfect 16-QAM sequences are presented. When one of two time shifts chosen equals half a period of quadriphase sequence employed and another is zero, two of the proposed three sequence families possess the property that their out-of-phase ...
Fanxin ZENG, Xiaoping ZENG, Zhenyu ZHANG, Guixin XUAN   +3 more
openaire   +3 more sources

Asymptotically Almost Periodic Sequence Solutions for a Class of Difference Equations

, 2012
Differential equations is proposed when people study the variational equation of the orbits in discrete dynamical systems. It has important applications in many areas, including differential equations numerical methods, finite element method, control theory and computer science research.
Jingguo Qu, Yuhuan Cui, Aimin Yang, Huancheng Zhang   +3 more
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HOC Spectral Analysis of an Almost Periodic Random Sequence in Noise

, 1987
Abstract : Under some conditions, the expected numbers of zero-crossings observed in a finite section of a process with a mixed spectrum and in finite sections of its filtered versions, determine the frequencies in the discrete spectrum regardless of the magnitude of the noise component. Keywords: Spectrum analysis, Oscillation; Amplitude; Higher order
Shuyuan He, B. Kedem
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