Results 21 to 30 of about 3,936,282 (345)

Radius stabilization in a supersymmetric warped compactification [PDF]

Physical Review D, 2004
A supersymmetric (SUSY) model of radius stabilization is constructed for the S^1/Z_2 warped compactifications with a hypermultiplet in five dimensions. Requiring the continuity of scalar field across the boundaries, we obtain radius stabilization preserving SUSY, realizing the SUSY extension of the Goldberger-Wise mechanism.
Minoru Eto, Nobuhito Maru, Norisuke Sakai   +2 more
openaire   +3 more sources

The probabilistic real stability radius

IFAC Proceedings Volumes, 1999
Abstract In this paper we study the probabilistic real stability radius , which gives a description of the degradation of the probability of stability beyond the classical real stability radius. The main result of the paper is to determine the probability density function of the singular values of the perturbation matrix ▵.
CALAFIORE, Giuseppe Carlo, DABBENE F., TEMPO R.   +2 more
openaire   +3 more sources

On the nonlinearly structured stability radius problem [PDF]

Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207), 1998
This paper considers the problem of finding a perturbation matrix with the least spectral norm such that a matrix-valued function becomes singular, where the dependence of the function on the perturbation is allowed to be nonlinear. It is proved that such a problem can be approximated by a smooth unconstrained minimization problem with compact sublevel
Lam, J, Yan, WY
openaire   +2 more sources

Effect of eccentricity and inner pipe motion on flow instability for flow through annulus

SN Applied Sciences, 2021
Present work implements the Energy gradient method (EGM) to study the effect of variation in eccentricity, radius ratio and inner pipe movement on the fully developed flow of Newtonian fluid through an annulus for the flow instability.
Satish Kumar Dewangan
doaj   +1 more source

Stabilization of behaviours [PDF]

, 1996
In this paper we characterize the set of all restrictions on the behaviour of a plant that shape the characteristic polynomial of the closed-loop system. These control laws include both classical feedback laws and singular feedback laws.
Geest, Robert van der
core   +2 more sources

Theoretical analysis of grouting reinforcement for surrounding rock of deep shaft based on stability and water inflow control

Frontiers in Earth Science, 2023
To address the challenge of designing grouting reinforcement in a deep shaft to control water, this study established an elastic-plastic analytical formula for the grouted rock surrounding a shaft under the combined action of thermal, hydraulic, and ...
Peng Xiang, Hong Guang Ji, Guang Quan Zhang, Wen Guang Li   +3 more
doaj   +1 more source

Analytical modeling of chatter stability in turning and boring operations: a multi-dimensional approach [PDF]

, 2007
In this study, an analytical model for the stability of turning and boring processes is proposed. The proposed model is a step ahead from the previous studies as it includes the dynamics of the system in a multidimensional form, uses the true process ...
Budak, Erhan, Ozlu, Emre, Özlü, Emre
core   +1 more source

On one type of stability for multiobjective integer linear programming problem with parameterized optimality [PDF]

Computer Science Journal of Moldova, 2020
A multiobjective problem of integer linear programming with parametric optimality is addressed. The parameterization is introduced by dividing a set of objectives into a family of disjoint subsets, within each Pareto optimality is used to establish ...
Vladimir A. Emelichev, Yury Nikulin
doaj  

Stability margins for generalized fractional two-dimensional state space models [PDF]

Archives of Control Sciences
In this paper, a new class of bidimensional fractional linear systems is considered. The stability radius of the disturbed system is described according to the H ∞ norm.
Souad Salmi, Djillali Bouagada
doaj   +1 more source

A new mechanism for radius stabilization in warped supersymmetry [PDF]

Physics Letters B, 2005
A new mechanism for the radius stabilization is proposed in a 5D super-Yang-Mills model in the warped background of ${AdS}_5$. Dominant 1-loop contribution to the supersymmetric 4D effective potential is estimated to depend on the radion. The minimization of the effective potential incorporating the tree potential and a Fayet-Iliopoulos $D$-term for ...
Akihiro Murayama, Shoichi Ichinose
openaire   +3 more sources