Results 81 to 90 of about 972,995 (278)

Interior/exterior point methods with inertia correction for the solution of the reactive optimal power flow problem with discrete variables

open access: yesGEPROS: Gestão da Produção, Operações e Sistemas, 2018
Interior and Exterior Points Methods have been used for solving the Optimal Reactive Power Flow (ORPF) problem. However, the solution of the the ORPF problem is hampered when transformers tap ratios and the shunts of capacitor banks and reactors are ...
Leonardo Nepomuceno   +1 more
doaj   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

open access: yesFEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova   +2 more
wiley   +1 more source

A comparison of general-purpose optimization algorithms forfinding optimal approximate experimental designs [PDF]

open access: yes, 2019
Several common general purpose optimization algorithms are compared for findingA- and D-optimal designs for different types of statistical models of varying complexity,including high dimensional models with five and more factors.
Garcia-Garcia, Jose Carlos   +4 more
core  

Polynomial Linear Programming with Gaussian Belief Propagation

open access: yes, 2008
Interior-point methods are state-of-the-art algorithms for solving linear programming (LP) problems with polynomial complexity. Specifically, the Karmarkar algorithm typically solves LP problems in time O(n^{3.5}), where $n$ is the number of unknown ...
Bickson, Danny   +3 more
core   +2 more sources

Cutaneous Melanoma Drives Metabolic Changes in the Aged Bone Marrow Immune Microenvironment

open access: yesAging and Cancer, EarlyView.
Melanoma, the deadliest form of skin cancer, increasingly affects older adults. Our study reveals that melanoma induces changes in iron and lipid levels in the bone marrow, impacting immune cell populations and increasing susceptibility to ferroptosis.
Alexis E. Carey   +12 more
wiley   +1 more source

Diffusion Spectrum Imaging Maps Early Axonal Loss and a Unique Progressive Signal in Neuronal Intranuclear Inclusion Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang   +10 more
wiley   +1 more source

Interior Point Method for Solving Fuzzy Number Linear Programming Problems Using Linear Ranking Function

open access: yesJournal of Applied Mathematics, 2013
Recently, various methods have been developed for solving linear programming problems with fuzzy number, such as simplex method and dual simplex method.
Yi-hua Zhong   +3 more
doaj   +1 more source

Feasibility and Tolerability of Performing Portable MRI for Neurological Disorders in an Outpatient Neurology Clinic: A Prospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick   +19 more
wiley   +1 more source

Short run hydrothermal coordination with network constraints using an interior point method

open access: yesIngeniería y Ciencia, 2008
This paper presents a lineal optimization model to solve the hydrothermal coordination problem. The main contribution of this work is the inclusion of the network constraints to the hydrothermal coordination problem and its solution using an interior ...
Jesús María López Lezama   +2 more
doaj  

An improved search direction based on algebraic equivalent transformation technique for convex quadratic optimization [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization
This work presents an improved interior point algorithm with full Newton step for convex quadratic optimization. Based on the technique of algebraic equivalent transformation, we first propose a new search direction for convex quadratic optimization with
Aicha Kraria   +2 more
doaj   +1 more source

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