Results 51 to 60 of about 231,170 (284)

Constrained Minimization Algorithms. Linear Models [PDF]

open access: yes, 2020
This book is a collection of 19 articles which reflect the courses given at the Collège de France/Summer school “Reconstruction d'images − Applications astrophysiques“ held in Nice and Fréjus, France, from June 18 to 22, 2012. The articles presented in this volume address emerging concepts and methods that are useful in the complex process of improving
Lantéri, H., Theys, C., Richard, C.
openaire   +2 more sources

A Linear Network Code Construction for General Integer Connections Based on the Constraint Satisfaction Problem [PDF]

open access: yes, 2015
The problem of finding network codes for general connections is inherently difficult in capacity constrained networks. Resource minimization for general connections with network coding is further complicated.
Cui, Ying   +6 more
core   +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

Proposed shunt rounding technique for large-scale security constrained loss minimization [PDF]

open access: yes, 2010
The official published version can be obtained from the link below - Copyright @ 2010 IEEE.Optimal reactive power flow applications often model large numbers of discrete shunt devices as continuous variables, which are rounded to their nearest discrete ...
Hurlock, P   +4 more
core   +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

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

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

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Cell geometry determines symmetric and asymmetric division plane selection in Arabidopsis early embryos. [PDF]

open access: yesPLoS Computational Biology, 2019
Plant tissue architecture and organ morphogenesis rely on the proper orientation of cell divisions. Previous attempts to predict division planes from cell geometry in plants mostly focused on 2D symmetric divisions.
Julien Moukhtar   +7 more
doaj   +1 more source

String-Averaging Projected Subgradient Methods for Constrained Minimization [PDF]

open access: yes, 2013
We consider constrained minimization problems and propose to replace the projection onto the entire feasible region, required in the Projected Subgradient Method (PSM), by projections onto the individual sets whose intersection forms the entire feasible ...
Censor, Y., Zaslavski, A. J.
core  

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