In order to overcome the drawbacks of expensive function evaluation in practical reliability-based design optimization (RBDO) problem, researchers have proposed black box-based RBDO method. The algorithm flow commonly employed method for box problem consists outer construction loop surrogate model constraint and inner model-based solving loop. To improve ability this paper proposes a transforma...

This paper introduces a surrogate model based algorithm for computationally expensive mixed-integer black-box global optimization problems that may have computationally expensive constraints. The goal is to find accurate solutions with relatively few function evaluations. A radial basis function surrogate model (response surface) is used to select candidates for integer and continuous decision ...

In many countries, a number of industrial estates have been established to support the growth sector, which is an essential strategy drive economic growth. Planning for location factories within estate, however, becomes complex, given various types plants and requirements utilities operations park. this research, we model analyze bi-objective optimization locating estate by considering economic...

This work presents an efficient methodology for the optimum design of functionally graded structures using a Kriging-based approach. The method combines adaptive Kriging framework with hybrid particle swarm optimization (PSO) algorithm to improve computational efficiency process. In this approach, surrogate model is used replace high-fidelity structural responses obtained by NURBS-based isogeom...

This paper proposes a method to generate trajectories that are optimal with respect multiple objectives and robust against epistemic uncertainty. Epistemic uncertainty is modelled probability boxes optimised the lower expectations on cost functions constraint satisfaction. The an approach calculation of expectation using Bernstein polynomials, efficient many-objective optimisation trajectories....

Combined plant/control optimization is applied to a PEM hybrid fuel cell vehicle (HFCV) for vehicle to grid (V2G) applications. The HFCV model is developed from past control-oriented models. For the purposes of design optimization, three components (fuel cell stack, compressor, and battery) are made scalable. To construct a control scheme suitable for combined plant/control design optimization,...

Impact injuries are commonplace in sport and often lead to performance detriment and debilitation. Personal Protective Equipment (PPE) is prescribed as a mandatory requirement in most sports where these impacts are likely to occur, though the methods of governance and evaluation criteria often do not accurately represent sports specific injury scenarios. One of the key shortcomings of such safe...

a bstract   background: there are a few studies about commissioning mothers’ understanding from the surrogacy during 9 months of waiting for delivery in iran and other countries. this study was conducted with an aim to explore and explain the nature of concerns (experiences) of commissioning mothers. materials and methods:  a qualitative design with a conventional content analysis approach was ...

Objective: Duplex ultrasonography is a non-invasive, non-expensive screening test for carotid disease. Intima media thickness (IMT) is appropriate for atherosclerosis process diagnosis. Leukoaraisis (LA) increase the risk of cerebrovascular accident (CVA). LA patients need preventive medication for CVA. IMT is a non-invasive diagnostic and prognostic test in LA. The aim of this study was evalua...

Ensuring the continuity of service in electricity distribution grids at minimum costs is a key challenge many countries, as extreme weather events and fluctuating renewable energy increase. New grid concepts such active networks with distributed resources, or microgrids that can operate islanded mode, offer opportunities to improve reliability resilience grids. This paper presents an network de...