Results 21 to 30 of about 101,513 (251)

Noise-Based Frequency Spectrum Correction Method Using Interior Point Approach

open access: yesIEEE Access
The spectral correction of noisy real sinusoidal signals is of critical importance; however, the presence of spectral leakage and noise introduces significant challenges.
Guichun Yang   +6 more
doaj   +1 more source

Interior Point Methods

open access: yesJournal of Computational and Applied Mathematics, 2000
The simplex method starts from a basic feasible solution and moves along the boundary of the feasible region until an optimum is reached. At each step, the algorithm brings only one new variable into the basic set, regardless of the total number of variables.
Potra, Florian A., Wright, Stephen J.
  +4 more sources

Interior point method based contact analysis algorithm for structural analysis of electronic device models

open access: yesMechanical Engineering Journal, 2015
In this paper, we present an algorithm for frictionless contact problems of linear elastic bodies with multi-point constraints. Our algorithm is based on an interior point method and is developed for large scale stress analysis of electronic device ...
Kazuhisa INAGAKI   +2 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Improving complexity of Karmarkar's approach for linear programming

open access: yesJournal of Numerical Analysis and Approximation Theory, 2014
In this paper, we are interested in the performance of Karmarkar's projective algorithm for linear programming. Based on the work of Schrijver, we offer a new displacement step better than Schrijver's one which led to a moderate improvement in the ...
Djamel Benterki, Mousaab Bouafia
doaj   +2 more sources

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Homotopy Method for a General Multiobjective Programming Problem under Generalized Quasinormal Cone Condition

open access: yesAbstract and Applied Analysis, 2012
A combined interior point homotopy continuation method is proposed for solving general multiobjective programming problem. We prove the existence and convergence of a smooth homotopy path from almost any interior initial interior point to a solution of ...
X. Zhao   +3 more
doaj   +1 more source

Research on Day Ahead Dynamic Reactive Power Optimization Based on Generator Operation

open access: yes发电技术, 2021
In order to solve the practical problem of 24-hours dynamic reactive power optimization in power system dispatching, this paper divided generator's operation into three regions in PQ mathematical model, according to the limit output range of generator's ...
Bin LU, Shan GAO, Desheng LI
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Interior point methods in the year 2025 [PDF]

open access: yesEURO Journal on Computational Optimization
Interior point methods (IPMs) have hugely influenced the field of optimization. Their fast development has been triggered by the seminal paper of Narendra Karmarkar published in 1984 which delivered a polynomial algorithm for linear programming and suggested that it might be implemented into a very efficient method in practice.
openaire   +2 more sources

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