Results 101 to 110 of about 6,521,824 (285)

Controllability and Observability Conditions for Impulsive DAEs on Time Scales

Asian Journal of Control, EarlyView.
ABSTRACT This paper establishes criteria for controllability and observability in a class of linear time‐invariant impulsive differential‐algebraic equations (DAEs) defined on a time scale. Controllability is defined as the ability to transfer the system state from any initial condition to any desired state within a finite time interval using an ...
Awais Younus, Zoubia Dastgeer, Thabet Abdeljawad, Meriem Louafi   +3 more
wiley   +1 more source

Synchronization‐Performance‐Oriented Frequency‐Domain Iterative Learning Control for Wafer and Reticle Stages

Asian Journal of Control, EarlyView.
ABSTRACT The synchronization accuracy between the wafer stage and reticle stage in lithography is critical to overlay and critical dimension uniformity. Existing iterative learning control (ILC) methods indirectly optimize synchronization via time‐domain errors, failing to balance low‐frequency tracking accuracy and high‐frequency noise suppression ...
Xin Zhou, Yuejing Qi, Zhipeng Wu, Wei Qi, Tianwei Xu   +4 more
wiley   +1 more source

An Algorithm for Computing Geometric Mean of Two Hermitian Positive Definite Matrices via Matrix Sign

Abstract and Applied Analysis, 2014
Using the relation between a principal matrix square root and its inverse with the geometric mean, we present a fast algorithm for computing the geometric mean of two Hermitian positive definite matrices.
F. Soleymani, M. Sharifi, S. Shateyi, F. Khaksar Haghani   +3 more
doaj   +1 more source

Do consumers and healthcare professionals report the same adverse event differently? A paired analysis of duplicate vaccine safety reports in Norway

British Journal of Clinical Pharmacology, EarlyView.
Aim This study aimed to compare how Norwegian healthcare professionals (HCPs) and consumers reported the same adverse event (AE) following immunization with vaccines against COVID‐19 during the COVID‐19 pandemic. Specifically, we aimed to compare the extent to which HCPs and consumers reported information relevant for assessing the causal relationship ...
Tommy Emil Dzus, Johaina Sarrage, Hilde Samdal, François Montastruc, Elena Rocca   +4 more
wiley   +1 more source

Approximating Functions of a Large Sparse Positive Definite Matrix using a Spectral Splitting Method [PDF]

, 2005
The computation of functions of large sparse matrices f(A) is an important topic in numerical linear algebra and finds application in many fields of applied mathematics and statistics. In previous research we considered ? matrices with compact spectrum ?(
Turner, I. W., Ilic, Milos, Turner, Ian, Ilic, M.   +3 more
core  

Model‐Enabled Knowledge Transfer Across Cell Lines, Culture Scales and Conditions

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Mechanistic models are central to quantitative understanding and optimization of Chinese hamster ovary (CHO) cell culture processes, but their utility is often restricted by parameter sets calibrated for specific cell lines, scales, or operating conditions.
Luxi Yu, Antonio del Rio Chanona, Cleo Kontoravdi   +2 more
wiley   +1 more source

Gen‐AI Is Not an Option for Environment Sustainability‐Enabling of Gen‐AI for Responsible and Green Supply Chains Using a Grey Network Map (GNM)

Business Strategy and the Environment, EarlyView.
ABSTRACT Environmental sustainability in supply chains is no longer considered a compliance concern. It has become a strategic capability challenge, as firms seek to use Generative artificial intelligence (Gen‐AI) to improve decision quality, resource efficiency and responsible operations.
Anbesh Jamwal, Anil Kumar, Ashutosh Samadhiya, Sunil Luthra   +3 more
wiley   +1 more source

Active Positive-Definite Matrix Completion [PDF]

, 2017
Charalampos Mavroforakis, Dóra Erdös, Mark Crovella, Evimaria Terzi   +3 more
openaire   +2 more sources

On two functions of a matrix with positive definite hermitian part

Linear Algebra and its Applications, 1996
The two functions are \(H(A^{-1})^{-1}\) and \(A^{-1}A^H\) where \(H(A)\) is the Hermitian part of \(A\) and \(A^H\) is the conjugate transpose. The author obtains new and improved bounds for norms and eigenvalues when we perturb \(A\) to some \(A+E\).
openaire   +1 more source

On Positive Definite Solutions of Quaternionic Matrix Equations

, 2010
The real representation of the quaternionic matrix is definited and studied. The relations between the positive (semi)define quaternionic matrix and its real representation matrix are presented.
Minghui Wang
core   +1 more source