检索结果-内蒙古大学图书馆

5th International Conference on High Performance Structures and Materials

作者： Kravanja, S. Zlender, B. Univ Maribor Fac Civil Engn Maribor Slovenia

ISBN: (纸本)9781845644642

This paper presents the cost optimization of an underground gas storage (UGS), designed from lined rock caverns (LRCs). The optimization is performed by the non-linear programming (NLP) approach. For this purpose, the NLP optimization model OPTUGS was developed. The model comprises the cost objective function, which is subjected to geomechanical and design constraints. It is proposed that the geotechnical problem will be solved simultaneously. In such a way, the optimization enables not only that the solution is optimal, but also that the rock mass achieves enough strength, stability and safety. It is proposed that the optimization will be performed for the phase of the conceptual design. The numerical example at the end of the paper demonstrates the efficiency of the introduced optimization approach.

关键词： underground gas storage UGS lined rock cavern LRC optimization non-linear programming NLP

来源：评论

学校读者我要写书评

暂无评论

Particle Swarm Optimization for Correlative Product Combinatorial Introduction Model

Particle Swarm Optimization for Correlative Product Combinat...

引用

21st Chinese Control and Decision Conference

作者： Wan Fucai Dong Wei Shenyang Univ Coll Informat Engn Shenyang 110044 Peoples R China Chinese Acad Sci Shenyang Inst Automat Shenyang 110016 Peoples R China

ISBN: (纸本)9781424427239

Enterprises need to develop a process to determine how to find and develop new product ideas and finally, how to successfully introduce them to the marketplace. To address this problem, conceptions of Optimal introduction Period and Correlative Profit were presented. Based on the quantitative description of the product life cycle, a non-linear Semi-infinite programming model of new product introduction was proposed. The proposed model was solved by improved Particle Swarm Optimization (PSO) algorithms. Optimal solution of the given example shows that Particle Swarm Optimization has become the hotspot of evolutionary computation because of its excellent performance and simplicity for implement in solving combined optimization problems.

关键词： New Product Introduction Planning non-linear programming Combinatorial Introduction Particle Swarm Optimization E-Commerce

来源：评论

学校读者我要写书评

暂无评论

A robot path planning approach based on generalized semi-infinite optimization

A robot path planning approach based on generalized semi-inf...

引用

IEEE Conference on Robotics, Automation and Mechatronics

作者： Liu, H Tang, QY Wang, YJ Univ Toronto Dept Comp Sci Toronto ON M5S 3G4 Canada

ISBN: (纸本)0780386450

This paper inherits the fundamental ideas of inequality and optimization techniques from the previous work and converts the real-time obstacle avoidance problem into a semi-infinite constrained optimization problem with the help of a delicate mathematical transformation, which leads to an efficient real-time robotics' path planning approach. Motivated by the practical requirements of obstacle representation, a generalized semi-infinite optimization problem (GSOP) with not only intersection but also union operations was proposed and a mathematical solution to it was developed. Simulation results in 3D space have been presented to show its merits.

关键词： non-linear programming obstacle avoidance robotics semi-infinite constrained optimization

来源：评论

学校读者我要写书评

暂无评论

A Game-theoretic Algorithm for non-linear Single-Path Routing Problems

引用

Electronic Notes in Discrete Mathematics 2016年 52卷 77-84页

作者： Vallet, Josselin Brun, Olivier Prabhu, Balakrishna CNRS LAAS 7 avenue du colonel Roche Toulouse F-31400 France Univ. de Toulouse LAAS Toulouse F-31400 France

This paper is devoted to non-linear single path routing problems, which are known to be NP-hard even in the simplest cases. We propose a Best Response algorithm, based on Game Theory, providing single-path routings with modest relative errors with respect to optimal solutions, while being several orders of magnitude faster than existing techniques. © 2016 Elsevier B.V.

关键词： Best response Game theory non-linear programming Single-path routing

来源：评论

学校读者我要写书评

暂无评论

Convex shapes for given torsion constant and second moments of area

引用

Engineering Optimization 1987年第1-2期11卷 39-48页

作者： Karihaloo, B.L. Hemp, W.S. School of Civil and Mining Engineering The University of Sydney NSW 2006 Australia Duffryn House Horton-cum-Studley Oxford 0X9 1AW United Kingdom

The paper presents approximate analytical solutions of the problem of finding the shape of a plane convex figure that encloses the least area but whose torsion constant and the least second moment of area about any centroidal axis are not less than certain prescribed values. It is shown that these solutions are in good agreement with the numerical solution of the corresponding-non-linear programming problem. © 1987, Taylor & Francis Group, LLC. All rights reserved.

关键词： approximate analytical solution flexure non-linear programming Optimum convex shapes torsion

来源：评论

学校读者我要写书评

暂无评论

SUPER-RESOLUTION RECONSTRUCTION OF HYPERSPECTRAL IMAGES VIA AN IMPROVED MAP-BASED APPROACH 36

SUPER-RESOLUTION RECONSTRUCTION OF HYPERSPECTRAL IMAGES VIA ...

引用

36th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)

作者： Irmak, Hasan Akar, Gozde B. Yuksel, Seniha Esen Aytaylan, Hakan Middle East Tech Univ Dept Elect & Elect Engn Ankara Turkey Hacettepe Univ Dept Elect & Elect Engn Ankara Turkey Aselsan Inc Ankara Turkey

ISBN: (纸本)9781509033324

Super-resolution Reconstruction (SRR) is technique to increase the spatial resolution of images. It is especially useful for hyperspectral images (HSI), which have good spectral resolution but low spatial resolution. In this study, we propose an improvement to our previous work and present a novel MAP-MRF (maximum a posteriori-Markov random Fields) based approach for the SRR of HSI. The key point of our approach is to find the abundance maps of an HSI and perform SRR on the abundance maps using MRF based energy minimization, without needing any other additional source of information. In order to do so, first, PCA is used to determine the endmembers. Second, SISAL and fully constraint least squares (FCLS) are used to estimate the abundance maps. Third, in order to find the high resolution abundance maps, the ill-posed inverse SRR problem for abundances is regularized with a MAP-MRF based approach. The MAP-MRF formulation is restricted with the constraints which are specific to the abundances. Using the non-linear programming (NLP) techniques, the convex MAP formulation is minimized and High Resolution (HR) abundance maps are obtained. Then, these maps are used to construct the HR HSI. This improved SRR method is verified on real data sets, and quantitative performance comparison is achieved using PSNR, SSIM and PSNR metrics. Our results indicate that this improved method gives very close results to the original high resolution images, keeps the spectral consistency, and performs better than the compared algorithms.

关键词： Hyperspectral Super-resolution Reconstruction MAP-MRF non-linear programming

来源：评论

学校读者我要写书评

暂无评论

Security Constrained Economic Dispatch with Secure Bilateral Transactions in Hybrid Electricity Markets

Security Constrained Economic Dispatch with Secure Bilateral...

引用

Joint International Conference on Power Systems Technology (POWERCON)/IEEE Power India Conference

作者： Kumar, Ashwani Chanana, Saurabh Natl Inst Technol Kurukshetra Dept Elect Engn Kurukshetra Haryana India

ISBN: (纸本)9781424417636

This paper proposes security constrained economic power dispatch (SCED) of the generators in the presence of secure bilateral transactions for hybrid electricity markets. The proposed non-linear optimization problem considers simultaneous minimization of deviations from scheduled transactions and minimization of fuel cost of the generators. The impact of bilateral transactions on fuel costs of generators and generation pattern has also been studied. The proposed technique has been applied on IEEE 24-bus reliability test system (IRTS).

关键词： non-linear programming secure transaction matrix security constrained economic dispatch transaction matrix pattern

来源：评论

学校读者我要写书评

暂无评论

Adaptive lifetime maximization strategies for wireless sensor networks

Adaptive lifetime maximization strategies for wireless senso...

引用

2nd International Symposium on Wireless Pervasive Computing

作者： Slama, Ines Jouaber, Badii Zeghlache, Djamal Inst Natl Telecommun Wireless Networks & Multimedia Serv Dept 9Charles Fourier F-91011 Evry France

ISBN: (纸本)9781424405220

Energy consumption optimization constitutes one of the main challenges in wireless sensor networks. Most of the power based routing strategies proposed in the literature are based on global power consumption optimization rather than maximizing the network lifetime. In this paper, we propose an adaptive routing strategy that maximizes the lifetime of the sensor network, where optimal routes are selected in order to delay, as long as possible, the first energy run out among sensor nodes. The proposed routing strategy also takes into account both the reception and the transmission energy dissipations. Moreover, in order to adapt to the changes that may occur in the network topology or characteristics, we propose a global adaptive framework that dynamically reconfigures routes according to the current network state. The proposed strategy is modelled and simulation results are presented.

关键词： network lifetime maximization adaptive routing sensor networks routing optimization energy model non-linear programming performance

来源：评论

学校读者我要写书评

暂无评论

Developing spreadsheet models of Holt-Winter methods and solving with Microsoft Excel solver and differential evaluation technique: An application to tourism sector 5

Developing spreadsheet models of Holt-Winter methods and sol...

引用

2015 International Conference on Industrial Engineering and Operations Management (IEOM)

作者： Unal, Yusuf Ziya Al-Turki, Umar Mustafa Zaim, Selim Demirel, Omer Fahrettin Gorener, Rifat Fatih Univ Dept Ind Engn Istanbul Turkey King Fahd Univ Petr & Minerals Dept Syst Engn Dhahran Saudi Arabia Istanbul Tech Univ Dept Ind Engn Istanbul Turkey Roosevelt Univ Dept Finance Chicago IL 60605 USA

ISBN: (纸本)9781479960651

Forecasting and Time series techniques are frequently used and play extremely important roles in managerial activities and decision-making processes. Holt-Winters (HW) which is one of the most popular forecasting methods is utilized in cases where data show seasonality and/or trend. The method involves the selection of several parameters for optimum prediction results. Heuristics are usually utilized for optimum parameter selection and it appears to be an open field for improvement. In this study "Spreadsheet modeling" of HW method is improved by minimizing the mean squared error (i.e. prediction error). Since the forecast error is nonlinear function;Holt-Winters parameter optimization in this study is achieved by "Excel nonlinear Solver" and "Differential Evolution Search" techniques. To increase the usability of the spreadsheet modeling advance macro programming techniques are incorporated with the developed models in Microsoft Excel.

关键词： Forecasting Holt-Winters Heuristic Searches non-linear programming Spreadsheet Modeling Microsoft Excel Macro programming

来源：评论

学校读者我要写书评

暂无评论

An Optimization Model for Removal of Zinc from Industrial Wastewater

An Optimization Model for Removal of Zinc from Industrial Wa...

引用

IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)

作者： Assadian, F. Beirami, P. Islamic Azad Univ Dept Chem Cent Tehran Branch Tehran Iran Islamic Azad Univ Dept Chem North Tehran Branch Tehran Iran

ISBN: (纸本)9781467329453

Industrial wastewater is one of the crucial environmental concerns. Biosorption is an effective method used to remove toxic heavy metals from wastewater. Biosorption utilizes the capability of biomass to remove metal ions from wastewater. The determination of operating conditions, namely, the type and the amount of biomass to be used in the process as well as the processing time, are the key issues in the process. This paper proposes an optimization model for removal of zinc from wastewater. A biomass marine alga, Gracilaria Corticata (GC), is used as biosorbent. Derivation of zinc absorption kinetics model is first provided. A non-linear optimization model is then developed to determine the optimal operating conditions subject to satisfying a desired removal percentage while minimizing the total cost. The experimental results show that GC can be used well for zinc removal and the proposed optimization model can effectively reduce the process cost. The proposed approach is illustrated through a simplified numerical example.

关键词： Optimization non-linear programming Biosorption Zinc Gracilaria Corticata Heavy metal treatment

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：