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1993
There are four strange pseudoscalar mesons K+, K-, K0 and K0, which are all eigenstates of the Hamiltonian of the strong interaction. Their quark content, $$\begin{array}{*{20}{c}} {{{K}^{ + }} = (\bar{s}u)} & , & {{{K}^{0}} = (\bar{s}d)} & , \\ {{{K}^{ - }} = (\bar{u}s)} & , & {{{{\bar{K}}}^{0}} = (s\bar{d})} & , \\ \end{array}$$ (8.1) shows
Walter Greiner, Berndt Müller
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There are four strange pseudoscalar mesons K+, K-, K0 and K0, which are all eigenstates of the Hamiltonian of the strong interaction. Their quark content, $$\begin{array}{*{20}{c}} {{{K}^{ + }} = (\bar{s}u)} & , & {{{K}^{0}} = (\bar{s}d)} & , \\ {{{K}^{ - }} = (\bar{u}s)} & , & {{{{\bar{K}}}^{0}} = (s\bar{d})} & , \\ \end{array}$$ (8.1) shows
Walter Greiner, Berndt Müller
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On the stability of neutral systems with multiple delays
Proceedings of the 2003 American Control Conference, 2003., 2004This paper provides a new stability criterion for neutral. systems with multiple delays. Based on an inequality, a new delay-dependent stability criterion in terms of a linear matrix inequality is derived, which is shown by an example less conservative than the existing criteria.
Bin Yang, Li Tao, Yanhong Jiang
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Nonlinear Analysis: Theory, Methods & Applications, 1984
Consider a mixed type neutral system (1) \(x'(t)=f(t,x)+\sum^{m}_{j=1}F_ j(t,x)x'(t+P_ j)\), (2) \(x(0)=x_ 0\), where f is a continuous n-vector-valued functional, each \(F_ j\) is a continuous \(n\times n\) matrix-valued function defined on \(R\times C(R,R^ n)\), each \(P_ j\) is a constant real number and \(x_ 0\in R^ n\). It is also assumed that \(|
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Consider a mixed type neutral system (1) \(x'(t)=f(t,x)+\sum^{m}_{j=1}F_ j(t,x)x'(t+P_ j)\), (2) \(x(0)=x_ 0\), where f is a continuous n-vector-valued functional, each \(F_ j\) is a continuous \(n\times n\) matrix-valued function defined on \(R\times C(R,R^ n)\), each \(P_ j\) is a constant real number and \(x_ 0\in R^ n\). It is also assumed that \(|
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Stability of neutral type singular systems
Proceedings of 2011 International Conference on Electronic & Mechanical Engineering and Information Technology, 2011This paper discusses some new sufficient conditions for the stability of neutral type singular system with mixed delay. The work is done using LMI analysis and Lyapunov approach. By analyzing the stability of the new operator D and the relative system characteristics, we gain the main results of this paper.
Jichun Wang, Dong Xiao
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Multichannel neutral-particle analyzer system
Review of Scientific Instruments, 1979A multichannel neutral-analyzer system developed for the analysis of charge-exchange flux from magnetically confined plasma is described. The system uses tandem magnetic–electrostatic deflection of ions produced from neutrals stripped in a gas cell to obtain the energy spectra of specific charge-to-mass-ratio species.
W E, Nexsen, W C, Turner, W F, Cummins
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“Neutral oxygen” and superconductivity of metalloxide systems
Solid State Communications, 1988Abstract The possible “chemical” mechanism of pairing in metallooxide superconductors is investigated. We suggest that the pairing of holes in oxygen p-band occurs due to a tendency of oxygen to exist either in O 2− or in a “neutral” O° form. Theoretical description and physical consequences of this mechanism are discussed.
D.I. Khomskii, A.K. Zvezdin
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Outcome of a Dynamic Neutralization System for the Spine
Orthopedics, 2012One hundred fourteen patients (66 men and 48 women; mean age, 49 years) underwent spine stabilization using a dynamic neutralization system between January 1999 and August 2010 for degenerative disk disease, spinal instability, or spinal stenosis. Mean follow-up was 6.8 years (range, 1–11 years). Seven patients were lost to follow-up.
George, Sapkas +5 more
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Maximal asymptotics of neutral type systems
2012 17th International Conference on Methods & Models in Automation & Robotics (MMAR), 2012We consider a differential system of neutral type with distributed delay. We obtain a precise norm estimation of semigroup generated by the operator corresponding to the system in question. Our result is based on a spectral analysis of the operator and some uniform estimation of norms of the exponentials of matrices.
Grigory M. Sklyar, Piotr Polak
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Neutral Differential Systems with Impulse and Delay
2009In this paper, we discuss a class of impulsive partial neutral functional differential inclusions with infinite delay. The existence of mild solutions of these neutral differential systems with impulse and delay is obtained by using the new nonlinear alternatives of Leray-Schauder type.
Junhao Hu, Huafeng Chen
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On robust stability of neutral systems.
Kybernetika, 2001Summary: This paper focuses on the problem of uniform asymptotic stability of a class of linear neutral systems including some constant delays and time-varying cone-bounded nonlinearities. Sufficient stability conditions are derived by taking into account the weighting factors describing the nonlinearities.
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