Results 41 to 50 of about 229,971 (268)

Evaluating bound-constrained minimization software [PDF]

open access: yesComputational Optimization and Applications, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Birgin, Ernesto G., Gentil, Jan M.
openaire   +2 more sources

Existence of normalized solutions for the nonlinear Schrödinger–Poisson–Boltzmann system

open access: yesElectronic Journal of Qualitative Theory of Differential Equations
In this paper, we consider the following nonlinear Schrödinger–Poisson–Boltzmann (SPB) system under an $L^2$-norm constraint \begin{equation*} \begin{cases} -\Delta u+\lambda u+\phi u=\left|u\right|^{p-2}u&\text{in}\ \mathbb{R}^3,\\ -\Delta \phi+\kappa ...
Ruisha Chang, Kaimin Teng, Lintao Liu
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Ensemble-Based Cascaded Constrained Energy Minimization for Hyperspectral Target Detection

open access: yesRemote Sensing, 2019
Ensemble learning is an important group of machine learning techniques that aim to enhance the nonlinearity and generalization ability of a learning system by aggregating multiple learners.
Rui Zhao   +3 more
doaj   +1 more source

Some remarks on duality and optimality of a class of constrained convex quadratic minimization problems [PDF]

open access: yesYugoslav Journal of Operations Research, 2017
In this paper the duality and optimality of a class of constrained convex quadratic optimization problems have been studied. Furthermore, the global optimality condition of a class of interval quadratic minimization problems has also been ...
Roy Sudipta   +2 more
doaj   +1 more source

Analysis of local minima for constrained minimization problems [PDF]

open access: yes, 2014
We consider vectorial problems in the calculus of variations with an additional pointwise constraint. Our admissible mappings ${\bf n}:\mathbb{R}^k\rightarrow \mathbb{R}^d$ satisfy ${\bf n}(x)\in M$, where $M$ is a manifold embedded in Euclidean space ...
Bedford, S. J.
core  

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Optimal mistuning for enhanced aeroelastic stability of transonic fans [PDF]

open access: yes, 1983
An inverse design procedure was developed for the design of a mistuned rotor. The design requirements are that the stability margin of the eigenvalues of the aeroelastic system be greater than or equal to some minimum stability margin, and that the mass ...
Crawley, E. F., Hall, K. C.
core   +1 more source

High resolution image reconstruction with constrained, total-variation minimization

open access: yes, 2011
This work is concerned with applying iterative image reconstruction, based on constrained total-variation minimization, to low-intensity X-ray CT systems that have a high sampling rate.
Chartrand, Rick   +4 more
core   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

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