Results 21 to 30 of about 64,813 (288)

Design and Implementation of Pseudo-Inverse Thrust Allocation Algorithm for Ship Dynamic Positioning

open access: yesIEEE Access, 2020
The pseudo-inverse method cannot optimize the angle and needs to give the azimuth angle artificially, therefore, when the dynamic positioning system has variable vector propellers and rudders, the pseudo-inverse method cannot be applied to the full ...
Baoyu Ye   +3 more
doaj   +1 more source

Lower bounds for the low-rank matrix approximation

open access: yesJournal of Inequalities and Applications, 2017
Low-rank matrix recovery is an active topic drawing the attention of many researchers. It addresses the problem of approximating the observed data matrix by an unknown low-rank matrix. Suppose that A is a low-rank matrix approximation of D, where D and A
Jicheng Li, Zisheng Liu, Guo Li
doaj   +1 more source

New Inequalities of Weaving K-Frames in Subspaces

open access: yesMathematics, 2019
In the present paper, we obtain some new inequalities for weaving K-frames in subspaces based on the operator methods. The inequalities are associated with a sequence of bounded complex numbers and a parameter λ ∈ R .
Zhong-Qi Xiang
doaj   +1 more source

Pseudo-inverses of operators [PDF]

open access: yesBulletin of the American Mathematical Society, 1974
1. Let X and Y be complex Banach spaces, A a bounded linear operator from X to Y. If the null space N(A) and the closed range R(A)~ possess closed complementary subspaces U in X and V in Y respectively, the pseudo-inverse A* of A relative to (U, V) is defined as the linear extension of (AlU)to D(A*)=R(A)+V With the null space N(A*)=V.
openaire   +3 more sources

Pseudo-hypopion inverse avec polycorie congénitale

open access: yesThe Pan African Medical Journal, 2014
Patient de 34 ans, ayant une polycorie congénitale bilateral (Flèches blanches), aphaque ODG (opéré à l'âge de 4 ans pour cataracte congenital bilatérale sans implant), ayant bénéficié, suite à un décollement de rétine avec prolifération vitréo ...
Soufiane Berradi, Mounir Lezrek
doaj   +1 more source

Fuel-Optimal Thrust-Allocation Algorithm Using Penalty Optimization Programing for Dynamic-Positioning-Controlled Offshore Platforms

open access: yesEnergies, 2018
This research, a new thrust-allocation algorithm based on penalty programming is developed to minimize the fuel consumption of offshore vessels/platforms with dynamic positioning system.
Se Won Kim, Moo Hyun Kim
doaj   +1 more source

Condensation phenomena in nonlinear drift equations [PDF]

open access: yes, 2013
We study nonnegative, measure-valued solutions to nonlinear drift type equations modelling concentration phenomena related to Bose-Einstein particles. In one spatial dimension, we prove existence and uniqueness for measure solutions.
Carrillo, Jose' A.   +2 more
core   +2 more sources

Some Results on Generalized Inverse of Intuitionistic Fuzzy Matrices

open access: yesFuzzy Information and Engineering, 2014
In this paper, pseudo-similar intuitionistic fuzzy matrix (IFM) is defined with some properties of pseudo-similar and semi-similar IFMs studied. Here it is shown that, the pseudo-similarity relation preserve idempotency and regularity for the IFMs. After
R. Pradhan, M. Pal
doaj   +1 more source

AN INVERSE PROBLEM OF RECOVERING THE RIGHT HAND SIDE OF 1D PSEUDOPARABOLIC EQUATION

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2021
Inverse problems of finding the right-hand side of a partial differential equations arise when an external source is unknown or impossible to measurement, for example, the source is in a high-temperature environment or underground.
Kh. Kenzhebai
doaj   +1 more source

Quasi pseudo-inverse reconstruction for rotating PET scanners [PDF]

open access: yes, 2005
Proceeding of: 2005 IEEE Nuclear Science Symposium Conference Record, Puerto Rico, 23-29 Oct. 2005A new reconstruction strategy is proposed for 3D images acquired with rotating PET scanners.
Abella García, Mónica   +6 more
core   +3 more sources

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