Results 31 to 40 of about 139,187 (158)

HYBRID METHODOLOGY OF NONLINEAR GOAL PROGRAMMING

open access: yesActa Economica, 2003
What we demonstrate here is a nonlinear goal-programming (NLCP) algorithm based on original hybrid connection of the modified simplex method of goal programming, gradient method of feasible directions and method of optimal displacement size finding ...
Лазо Рољић, PhD
doaj  

Weak and Strong Superiorization: Between Feasibility-Seeking and Minimization

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2015
We review the superiorization methodology, which can be thought of, in some cases, as lying between feasibility-seeking and constrained minimization. It is not quite trying to solve the full edged constrained minimization problem; rather, the task is to ...
Censor Yair
doaj   +1 more source

New Feasibility Conditions for Directed Strongly Regular Graphs

open access: yesThe Electronic Journal of Combinatorics, 2017
We prove two results for directed strongly regular graphs that have an eigenvalue of multiplicity less than $k$, the common out-degree of each vertex. The first bounds the size of an independent set, and the second determines an eigenvalue of the subgraph on the out-neighborhood of a vertex. Both lead to new nonexistence results for parameter sets.
Sylvia A. Hobart, Jason Williford
openaire   +2 more sources

Introduction to Reconfiguration

open access: yesAlgorithms, 2018
Reconfiguration is concerned with relationships among solutions to a problem instance, where the reconfiguration of one solution to another is a sequence of steps such that each step produces an intermediate feasible solution.
Naomi Nishimura
doaj   +1 more source

Research progress on the pathogenesis, prevention and treatment of immune platelet transfusion refractoriness

open access: yesZhongguo shuxue zazhi
Platelet transfusion refractoriness (PTR) is one of the common problems in platelet transfusion, significantly impacting patient clinical outcomes and increasing the demand for allogeneic platelet transfusion.
LI Penghui, WU Chenggao, LE Aiping
doaj   +1 more source

Utilizing FEM-Software to quantify pre- and post-interventional cardiac reconstruction data based on modelling data sets from surgical ventricular repair therapy (SVRT) and cardiac resynchronisation therapy (CRT)

open access: yesBioMedical Engineering OnLine, 2006
Background Left ventricle (LV) 3D structural data can be easily obtained using standard transesophageal echocardiography (TEE) devices but quantitative pre- and intraoperative volumetry and geometry analysis of the LV is presently not feasible in the ...
Verhey Janko F, Nathan Nadia S
doaj   +1 more source

Strategy to prime the host and cells to augment therapeutic efficacy of progenitor cells for patients with myocardial infarction

open access: yesFrontiers in Cardiovascular Medicine, 2016
Cell therapy in myocardial infarction (MI) is an innovative strategy that is regarded as a rescue therapy to repair the damaged myocardium and to promote neovascularization for the ischemic border zone.
Jeehoon Kang   +7 more
doaj   +1 more source

Nonlinear goal programming model application in optimal economy development policy choosing

open access: yesEconomic Analysis, 2019
In this paper a new nonlinear goal programming model (NGP) and a new interactive goal programming methodology (MINGP) have been developed which are more applicable then existent.
Lazo Roljić, Muris Dujsić
doaj   +2 more sources

Optimality Conditions for Approximate Solutions in Multiobjective Optimization Problems

open access: yesJournal of Inequalities and Applications, 2010
We study first- and second-order necessary and sufficient optimality conditions for approximate (weakly, properly) efficient solutions of multiobjective optimization problems. Here, tangent cone, -normal cone, cones of feasible directions, second-order
Lee HeungWingJoseph   +2 more
doaj  

Sub‐slab anisotropy beneath the Sumatra and circum‐Pacific subduction zones from source‐side shear wave splitting observations

open access: yesGeochemistry, Geophysics, Geosystems, 2014
Understanding the dynamics of subduction is critical to our overall understanding of plate tectonics and the solid Earth system. Observations of seismic anisotropy can yield constraints on deformation patterns in the mantle surrounding subducting slabs ...
Colton Lynner, Maureen D. Long
doaj   +1 more source

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