Results 11 to 20 of about 1,252,315 (243)
, 2023 Based on the framework of differential inclusion, we design a quaternion-valued neural network (QVNN) to solve a class of nonsmooth nonconvex optimization problems with equality, bounded and inequality constraints in quaternion domain.
Liu, J, Liao, X, Dong, JS
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Color face recognition using quaternion PCA [PDF]
, 2011 Recently, biometric systems have attracted the attention of both academic and industrial communities. Advances in hardware and software technologies have paved the way to such growing interest.
Jaha, Emad Sami +3 more
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Kinematic Mapping in Semi-Euclidean 4-Space
Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2015 We study the some algebraic properties of matrix associated to Hamilton operators is defined for semi-quaternions. The kinematic mapping corresponding to these operators in semi-Euclidean 4-space is same as the kinematic mapping of Blaschke and Grünwald ...
Mehdi JAFARI
doaj +4 more sources
Micromachines, 2018 In order to guarantee the stable flight of a guided projectile, it is difficult to realize in-flight alignment for the micro inertial navigation system (MINS) during its short flight time.
Yun Xu, Tong Zhou
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An investigation into the accuracy of calculating upper body joint angles using MARG sensors [PDF]
, 2014 We investigate magnetic, angular rate, and gravity (MARG) sensor modules for deriving shoulder, elbow and lumbar joint angles of the human body. We use three tri-axial MARG sensors, placed proximal to the wrist and elbow and centrally on the chest, and ...
Cranny, A +9 more
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MathematicsIn this article, we study the Ricci soliton on quaternion bi-slant submanifolds of quaternion Kaehler manifolds. We obtain a lower-bound-type inequality in terms of expanding gradient Ricci solitons with a gradient-type vector field for the quaternion bi-
Ali H. Hakami, Mohd Danish Siddiqi
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Distributed hybrid unit quaternion localisation of camera networks [PDF]
, 2023 openSeveral dynamical systems evolve on angular type of variables, such as the pose of rigid bodies or optimization techniques applied to variables of unitary norms.
CALLEGARI, SARA
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Application of X-ray Microtomography to Quantify the Liquid Fraction of M2 Steel for Semi-solid Forming process [PDF]
, 2013 Thixoforging, one variant of semi-solid metal processing in which the metallic alloys are processed at low liquid fraction (0.1< Fl < 0.3), is used to produce complex parts with high mechanical properties.
GU, Guochao +4 more
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Bounds on the levels of composition algebras
, 2010 Certain families of quaternion and octonion algebras are conjectured to be of level and sublevel n. A proof of this conjecture is offered in the case where n is a power of two. Hoffmann's proof of the existence of infinitely many new values for the level
James O'Shea +2 more
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Planning natural repointing manoeuvres for nano-spacecraft [PDF]
, 2014 In this paper the natural dynamics of a rigid body are exploited to plan attitude manoeuvres for a small spacecraft. By utilising the analytical solutions of the angular velocities and making use of Lax pair integration, the time evolution of the ...
Biggs, James +4 more
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