Results 11 to 20 of about 271,040 (153)

Solving a posynomial geometric programming problem with fully fuzzy approach [PDF]

open access: yesYugoslav Journal of Operations Research, 2019
In this paper we have investigated a class of geometric programming problems in which all the parameters are fuzzy numbers. In fact, due to impreciseness of the cost components and exponents in geometric programming with their inherently behavior as in ...
Kamaei Samira   +2 more
doaj   +1 more source

Variational Calculus Approach to Optimal Interception Task of a Ballistic Missile in 1D and 2D Cases

open access: yesAlgorithms, 2019
The paper presents the application of variational calculus to achieve the optimal design of the open-loop control law in the process of anti-ballistic missile interception task.
Dariusz Horla
doaj   +1 more source

Modified Genetic Algorithm of Global Extremum Search in Combination with Directional Methods

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2022
In the paper, the stochastic method of global extremum search is discussed, modified and tested. The method is based on normal distribution modeling and provides covariance matrix adaptation.
Dmitri Ovsyannikov   +4 more
doaj   +1 more source

Warranty Data Analysis: A Review [PDF]

open access: yes, 2012
Warranty claims and supplementary data contain useful information about product quality and reliability. Analysing such data can therefore be of benefit to manufacturers in identifying early warnings of abnormalities in their products, providing useful ...
Ahn   +97 more
core   +1 more source

On a Modified Weighted Exponential Distribution with Applications

open access: yesMathematical and Computational Applications, 2022
Practitioners in all applied domains value simple and adaptable lifetime distributions. They make it possible to create statistical models that are relatively easy to manage.
Christophe Chesneau   +3 more
doaj   +1 more source

Multi-Well Potentials in Quantum Mechanics and Stochastic Processes [PDF]

open access: yes, 2010
Using the formalism of extended N=4 supersymmetric quantum mechanics we consider the procedure of the construction of multi-well potentials. We demonstrate the form-invariance of Hamiltonians entering the supermultiplet, using the presented relation for ...
Berezovoj, Victor P.   +2 more
core   +4 more sources

Bow hull-form optimization in waves of a 66,000 DWT bulk carrier

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2017
This paper uses optimization techniques to obtain bow hull form of a 66,000 DWT bulk carrier in calm water and in waves. Parametric modification functions of SAC and section shape of DLWL are used for hull form variation.
Jin-Won Yu   +3 more
doaj   +1 more source

Genetic algorithm-based personalized models of human cardiac action potential.

open access: yesPLoS ONE, 2020
We present a novel modification of genetic algorithm (GA) which determines personalized parameters of cardiomyocyte electrophysiology model based on set of experimental human action potential (AP) recorded at different heart rates.
Dmitrii Smirnov   +8 more
doaj   +1 more source

Application of the UNDBE Model in Combination with the RALG Method to Solve the Problem of Radioecology of Water Bodies

open access: yesКібернетика та комп'ютерні технології, 2022
Introduction. The presence of radioactive pollution releases into the aquatic environment of NPPs operating in the normal mode, as well as during various emergency situations, requires the use of means for predicting the impact of such releases on the ...
Tamara Bielyh, Vladimir Sizonenko
doaj   +1 more source

Optimized statistical parametric mapping procedure for NIRS data contaminated by motion artifacts

open access: yesBrain Informatics, 2017
This study investigated the spatial distribution of brain activity on body schema (BS) modification induced by natural body motion using two versions of a hand-tracing task.
Satoshi Suzuki
doaj   +1 more source

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