Results 171 to 180 of about 649,170 (367)
International Journal of Circuit Theory and Applications, EarlyView.For the series active filter (SAF), a combined controller and observer scheme is proposed. Two controllers—state feedback (SFB) and linear quadratic regulator (LQR)—along with state observers, including the Luenberger observer (LO), proportional–integral observer (PIO), and unknown input observer (UIO), have been designed.
Nagulapati Kiran, I. E. S. Naidu
wiley +1 more source
On two functions of a matrix with positive definite hermitian part
Linear Algebra and its Applications, 1996 AbstractLet A be a square complex matrix with positive definite Hermitian part H(A) ≡ (A + AH)2, and let f(A), g(A) be two functions defined byf(A) H(A−1−1, g(A) A−AHThis paper derives new perturbation bounds for f(A), and studies the distribution and perturbation of the eigenvalues of f(A) and g(A).
openaire +2 more sources
Drug Testing and Analysis, EarlyView.A LC–MS/MS method has been validated for analysis of semi‐synthetic cannabinoids (SSC) and selected phytocannabinoids in seizures. Further SSC‐derivatives were implemented into the method for qualitative detection. The methodology was applied to a sample collective (n = 80) including cannabis flowers, resins, edibles and vape liquids.
Marica Hundertmark +4 more
wiley +1 more source
Challenges, models, and algorithms for flow and transport simulations in deep reservoirs
Deep Underground Science and Engineering, EarlyView.Deep reservoirs are considered a promising resource for future energy supply, but current reservoir simulation technologies may face certain challenges if they are directly used in specific scenarios in deep reservoir development. Models and algorithms were developed to resolve these challenges, including a better phase equilibrium model, a better ...
Tao Zhang, Jie Liu, Shuyu Sun
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Deep Underground Science and Engineering, EarlyView.In this work, we propose an improved particle swarm optimization (PSO) algorithm and develop an improved PSO‐relevance vector machine (RVM) model as a substitute for traditional true‐triaxial testing. The model's high prediction accuracy was validated through comparisons with two other machine learning methods and five three‐dimensional Hoek–Brown type
Qi Zhang +4 more
wiley +1 more source
Ecography, EarlyView.Body size is a key functional trait that has declined in many biological communities, partly due to changes in individual growth rates in response to climate warming. However, our understanding of growth responses in natural populations is limited by relatively short time series without large temperature contrasts and unknown levels of adaptation to ...
Max Lindmark +2 more
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This review involves a comprehensive study on the diverse applications of the magnetic layered double hydroxides (LDHs) including their catalytic performances, as well as, environmental and biological functions. Moreover, different strategies utilized for the synthesis of LDH‐based composites are described.
Mohammad Mavvaji +2 more
wiley +1 more source
International Journal of Robust and Nonlinear Control, EarlyView., 2023 Abstract We propose a hierarchical energy management scheme for aggregating Distributed Energy Resources (DERs) for grid flexibility services. To prevent a direct participation of numerous prosumers in the wholesale electricity market, aggregators, as self‐interest agents in our scheme, incentivize prosumers to provide flexibility. We firstly model the
Xiupeng Chen +3 more
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ESC Heart Failure, Volume 12, Issue 2, Page 998-1012, April 2025.In patients with Acute Myocardial Infarction related heart failure, the in‐hospital administration of ARNIs was associated with a reduced risk of MACEs and re‐hospitalizations for heart failure, as well as cardiac remodeling, compared to standard therapy.
Gianluca Di Pietro +15 more
wiley +1 more source