Applied simulation and optimization

In this study an optimal weather routing model (OWR) considers the meteorological and oceanographic information, ship’s characteristics combined with adaptive Bacterial Foraging Optimization Algorithm will be proposed and applied for ship’ navigation. The simulation results will be presented to show the effectiveness as well as the reliability of this model. The OWR will make it possible for safe navigation, effective operation, energy efficiency and reduce emission from vessel.

4p visergey 02-04-2024 1 0   Download

In this paper, we introduce a novel simulation-based optimization method, CMAESEP, which couples the Covariance Matrix Adaptation Evolution Strategy Optimization Algorithm and the Epanet hydraulic simulator for optimal designing water distribution networks. The proposed method is applied to the published benchmark water network of Hanoi.

10p vilarry 01-04-2024 2 1   Download

Ebook "Protein modelling" detailed description of cutting-edge computational methods applied to protein modeling as well as specific applications are presented. Chapters include: the application of Car-Parrinello techniques to enzyme mechanisms, the outline and application of QM/MM methods, polarizable force fields, recent methods of ligand docking, molecular dynamics related to NMR spectroscopy, computer optimization of absorption, distribution, metabolism and excretion extended by toxicity for drugs, enzyme design and bioinformatics applied to protein structure prediction.

332p tudohanhtau1006 29-03-2024 2 1   Download

Part 2 book "Applied chemistry and chemical engineering (Vol 2 - Principles, methodology and evaluation methods)" includes content: Protein structure prediction, 3D simulation of electrospun nanofiber jet, fructose and its impact on the diffusion of electrolytes in aqueous systems, application of evolutionary multiobjective optimization in designing chemical engineering and petroleum engineering systems and its wide technological vision - A critical overview and a broad scientific perspective

214p muasambanhan09 16-03-2024 3 1   Download

Ebook "Modeling risk: Applying Monte Carlo simulation, real options analysis, forecasting, and optimization techniques" provides a qualitative and quantitative description of risk, as well as introductions to the methods used in identifying, quantifying, applying, predicting, valuing, hedging, diversifying, and managing risk through rigorous examples of the methods’ applicability in the decision-making process.

623p tuongnhuoclan 28-11-2023 7 5   Download

Part 1 of ebook "Applied simulation and optimization: In logistics, industrial and aeronautical practice" has presents the following content: tools and techniques using simopt; simulation-based optimization with heuristiclab - practical guidelines and real-world applications; simulation optimization approach to solve a complex multi-objective redundancy allocation problem; OR and simulation in combination for optimization; tree search and simulation;...

141p dieptieuung 19-07-2023 4 1   Download

Continued part 1, part 2 of ebook "Applied simulation and optimization: In logistics, industrial and aeronautical practice" has presents the following content: scheduling problems; integrated solutions for delivery planning and scheduling in distribution centres; large neighbourhood search and simulation for disruption management in the airline industry; evolutionary approach with simulation for the improvement of check-in desk allocation in facilities;...

182p dieptieuung 19-07-2023 2 1   Download

This paper presents a solution to the power balance control strategy for WSN with collaborating heuristic. A distance between the weight factors and obtained nodes interference value is used to establish a useful interference model for enhancing the signal-to-interference-noise ratio (SINR). The utility function of the nodes residual energy and transmission rate is modeled by apply heuristic strategy. The optimal transmission power is obtained after several iterations of the heuristic algorithm.

11p linyanjun_2408 21-04-2022 19 3   Download

This paper presents the development of hydrodynamic simulation models (waves, currents) for the Vietnam East Sea and nestingto coastal area (applied in the coastal area of Phu Yen province). The COAWST modeling system has been used. This is an open source system which supports optimal parallel calculation and allows solving large-scale simulation problems.

9p meyerowitz 25-12-2021 13 0   Download

The 2D symmetric model of EPR with the electromagnetic force calculated was imported into Simplorer software to simulate the dynamic response of the EPR based on the influence of plug shape. The shape of plug in the EPR was changed through the dimension parameters denoted by dimension (h) and slope angle (α). The simulation results show that the electromagnetic force and dynamic response of the EPR can be optimized when h and α are selected at 3mm and 480, respectively.

8p spiritedaway36 28-11-2021 10 1   Download

This paper presents an inverse method for finding quantity of heat sources in high speed spindle. A commercial ANSYS software and Conjugate Gradient optimization method are used to construct the proposed inverse method. Simulations for different number of measurementpoints andlocations are performed. These results show that excellent estimation on heat generation can be obtained through using only two measurement points. The current methodology will provide a useful tool to investigate the complex heat transfer process in the high speed spindle.

5p chauchaungayxua11 23-03-2021 13 1   Download

This article presents a highly important and detailed techno-economic analysis of a grid-connected wind farm, considered as one of the most potential location in the south of Albania, part of Tepelena region, Mamaj village. The procedure of selection of the wind turbine type is performed by evaluating the maximum Capacity Factor (CF) among 15 different types of wind turbines applied using WAsP energy tool enabling the optimization of energy system while economic analysis uses a Monte Carlo simulation well designed on RETScreen Expert tool.

18p nguaconbaynhay10 22-02-2021 14 2   Download

In this article, two new metaheuristic optimization techniques, namely, crow search algorithm and re y algorithm are applied to the well placement optimization problem and their applications to maximize the net pro t value are studied. To study the performance of the re y and crow search algorithm, Eclipse and MATLAB environment are used . The proposed techniques are compared to popular established methods for optimizing well placement. Results show that the re y algorithm is proved to be e cient and e ective compared to other established techniques.

15p nguathienthan9 08-12-2020 14 0   Download

The paper analyzes and determines the optimal parameters of tuned mass damper to reduce torsional vibration for the machine shaft. The research steps are as follows. First, the optimal parameters of tuned mass damper for the shafts are given by using the maximization of equivalent viscous resistance method. Second, a numerical simulation is performed for configuration of machine shaft to validate the effectiveness of the obtained analytical results. The simulation results indicate that the proposed method significantly increases the effectiveness of torsional vibration reduction.

9p cothumenhmong8 04-11-2020 16 1   Download

This paper focusses on the computational aspects of infectious disease models and applies commonly available graphics processing units (GPUs) for the simulation of these models. However, fully utilizing the resources of both CPUs and GPUs requires a carefully balanced heterogeneous approach.

11p viconnecticut2711 28-10-2020 15 0   Download

According to the drilling program approved for Hai Thach field, the drilling section below the 16” casing liner (14.85” internal diameter) will be carried out by two separate BHAs: first drilling the 12.25” section by PDC bit to the section target, then under-reaming the wellbore to 14.5” and 16.5” diameter in order to run 13.625” casing string. Using two separate BHAs for reaming the wellbore certainly leads to a time increase in the run in hole (RIH) and pull out of the hole (POOH) of the drill-string and hence the associated costs such as rig and other related third party services.

8p kequaidan6 10-07-2020 13 0   Download

An optimization-simulation strategy has been applied by coupling a commercial process simulator (Aspen HYSYS ) with a programming tool (MATLAB ) to produce a precise steady state simulationbased optimization of a whole green-field saturated gas plant as a real case study. The plant has more than 100-components and comprises interacting three-phase fractionation towers, pumps, compressors and exchangers. The literature predominantly uses this coupling to optimize individual units at small scales, while paying more attention to optimizing discrete design decisions.

13p partimesinhvien 08-05-2020 19 0   Download

Recently terrestrial digital broadcasting systems have experienced a growth with the demand of high-data rate. In order to meet such demand, the multiple-input multiple-output (MIMO) technology has received wide attention. This paper proposes a pre-coding method, which provides high-space channel correlation for the improved performance over terrestrial broadcasting channels when the MIMO spatial multiplexing (SM) is adopted for digital video broadcasting-next generation handheld systems.

5p son248 24-03-2020 22 2   Download

Based on a thing that it is difficult to choose the parameters of active disturbance rejection control for the non-linear ALSTOM gasifier, multi-objective optimization algorithm is applied in the choose of parameters. Simulation results show that performance tests in load change and coal quality change achieve better dynamic responses and larger scales of rejecting coal quality disturbances. The study provides an alternative to choose parameters for othe r control schemes of the ALSTOM gasifier.

8p mentospurefresh 29-11-2019 5 0   Download

In this study, a Cloud Scalable Multi-Objective Cat Swarm Optimization-based Simulated Annealing algorithm is proposed. In the proposed method, the orthogonal Taguchi approach is applied to enhance the SA which is incorporated into the local search of the proposed CSMCSOSA algorithm for scalability performance.

33p meriday 20-04-2019 20 1   Download