Results 1 to 10 of about 271,020 (133)

Modified differential evolution method for parametric synthesis of fuzzy control system [PDF]

E3S Web of Conferences, 2023
A modification for differential evolution method is developed to solve the problem of synthesizing a fuzzy system with optimal parameters. This modification allows you to handle both integer and continuous variables, making it possible to solve any mixed
Luneva Ann, Luneva Svetlana
doaj   +1 more source

Hull Form Optimization Study Based on Multiple Parametric Modification Curves and Free Surface Reynolds-Averaged Navier–Stokes (RANS) Solver

Applied Sciences, 2022
In this study, the hull form optimization process to minimize resistance of KCS (KRISO containership) at Fn=0.26 is described. The bow hull form of KCS was modified by varying such design parameters as sectional area curve (SAC), section shape, bulb ...
Sung-Woo Park, Seung-Hyeon Kim, Yang-Ik Kim, Inwon Lee   +3 more
doaj   +1 more source

Asymptotic Distribution of an Estimator for Variance Function of a Compound Periodic Poisson Process with Power Function Trend

JTAM (Jurnal Teori dan Aplikasi Matematika), 2022
In this paper, an asymptotic distribution of the estimator for the variance function of a compound periodic Poisson process with power function trend is discussed.
Muhammad Wiranadi Utama, I Wayan Mangku, Bib Paruhum Silalahi   +2 more
doaj   +1 more source

Methods for Improving the Variance Estimator of the Kaplan–Meier Survival Function, When There Is No, Moderate and Heavy Censoring-Applied in Oncological Datasets

Frontiers in Public Health, 2022
In case of heavy and even moderate censoring, a common problem with the Greenwood and Peto variance estimators of the Kaplan–Meier survival function is that they can underestimate the true variance in the left and right tails of the survival distribution.
Habib Nawaz Khan, Qamruz Zaman, Fatima Azmi, Gulap Shahzada, Mihajlo Jakovljevic, Mihajlo Jakovljevic, Mihajlo Jakovljevic   +6 more
doaj   +1 more source

Health Assessment Method for Military Aircraft Based on Mission Capabilities

Hangkong gongcheng jinzhan, 2020
The military aircraft health assessment has the problem of difficult application in engineering practice. The military aircraft is taken as the research object of health assessment, including task-oriented capability analysis, function analysis based on ...
FANG Guancheng, WANG Haifeng, GUAN Ting, JIA Dapeng, LIU Haitao   +4 more
doaj   +1 more source

A multivariate quality loss function approach for parametric optimization of non-traditional machining processes [PDF]

Management Science Letters, 2018
Due to various added advantages over the conventional material removal processes, non-traditional machining (NTM) processes have now been widely applied in different manufacturing industries.
Shankar Chakraborty, Partha Protim Das
doaj   +1 more source

An Optimization Study on the Hull Form and Stern Appendage for Improving Resistance Performance of a Coastal Fishing Vessel

Applied Sciences, 2021
In response to the increasing number of free trade agreements (FTA) and the Trans-Pacific Partnership (TTP), it is necessary to develop next-generation fishing vessels for the littoral sea of the Republic of Korea.
Jin-Won Yu, Min-Kyung Lee, Yang-Ik Kim, Sung-Bu Suh, Inwon Lee   +4 more
doaj   +1 more source

Dissipative localized states and breathers in phase-mismatched singly resonant optical parametric oscillators: Bifurcation structure and stability

Physical Review Research, 2022
We study the emergence of dissipative localized states in phase mismatched singly resonant optical parametric oscillators. These states arise in two different bistable configurations due to the locking of front waves connecting the two coexisting states.
P. Parra-Rivas, C. Mas Arabí, F. Leo
doaj   +1 more source

T-Growth Stochastic Model: Simulation and Inference via Metaheuristic Algorithms

Mathematics, 2021
The main objective of this work is to introduce a stochastic model associated with the one described by the T-growth curve, which is in turn a modification of the logistic curve. By conveniently reformulating the T curve, it may be obtained as a solution
Antonio Barrera, Patricia Román-Román, Francisco Torres-Ruiz   +2 more
doaj   +1 more source

Single-index copulae [PDF]

, 2017
We introduce so-called "single-index copulae". They are semi-parametric conditional copulae whose parameter is an unknown "link" function of a univariate index only.
Fermanian, Jean-David, Lopez, Olivier
core   +3 more sources