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2nd International Conference on Nature of Computation and Communication (ICTCC)

作者： Nguyen Thanh Tung Phan Cong Vinh Vietnam Natl Univ Int Sch Hanoi Vietnam Nguyen Tat Thanh Univ Ho Chi Minh City Vietnam

ISBN: (纸本)9783319469096;9783319469089

In [5, 7, 8] an analytical model of the lifetime problem of wireless sensor networks is developed. The solution given by the model is not practical for WSNs. Each time, there is a change in a sensor network, the solution needs to be recalculated. Also, it is difficult to build ILP solvers inside the small sensors. Furthermore, when the number of sensor nodes and CHs increases, it quickly becomes infeasible to calculate an optimum solution. As the analytical model is not able to be used to solve complicated networks, heuristic solutions are then examined that can compute the solutions for large sensor networks. Finally, the simulation results of the heuristic solutions are presented and discussed.

关键词： Base station location Wireless sensor network Routing non-linear programming

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Industrial Implementation of Economic Dispatch for Co-Generation systems

Industrial Implementation of Economic Dispatch for Co-Genera...

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General Meeting of the IEEE-Power-and-Energy-Society

作者： Brannlund, Hakan Rahimi, Saeed Eriksson, Jan O. Thorgrennd, Mikael Ventyx ABB Co SE-72182 Vasteras Sweden

ISBN: (纸本)9781467327299

The objective of this paper is to address an industrially implemented economic dispatch (ED) function for cogeneration units, i.e. generating units with output in the form of both electric power and heat. The heat produced by the cogeneration power plants is used for desalination of sea water and the variation in demand for electricity and heat are therefore not correlated. This implies that an optimal loading of each generator can only be achieved if both of these two requirements are considered by the optimization model. The ED module solves the optimal dispatch problem considering both the electric load as well as the heat requirements provides the generation control thereby providing the operator important real-time decision support. Three different types of cogeneration plants are considered. The first plant configuration type consists of a gas turbine and a heat recovery steam generator that extracts heat from the gas turbine exhaust to produce steam. The second configuration type consists of a conventional combustion boiler and a steam turbine. The third considered plant configuration is what is also called combined cycle plants, i.e. a gas turbine with a heat recovery steam generator that produce steam for the operation of a steam turbine.

关键词： Co-Generation Combined Cycle Unit Economic Dispatch (ED) non-linear programming

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Transport logistics and simulation model for fleet of drones in a Mass Customization System

Transport logistics and simulation model for fleet of drones...

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CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON)

作者： Olivares, Victor Cordova, Felisa Duran, Claudia Univ Santiago Chile Ind Engn Dept Santiago Chile Univ Finis Terrae Fac Engn Santiago Chile

ISBN: (纸本)9781538631232

This work proposes the use of a fleet of drones (quadcopter/optocopter) inside a production plant of plastic products for the home, in the transport of the materials and components necessary for the personalization of products in the last phases of the production process in a Mass Customization System. A computational tool is designed to configure the fleet to perform certain logistic operations under different operating conditions. It is considered the demand for products (volume and weight), the power and speed of the drones and finally, the distance travelled based on the layout of the plant and transport layout of the drones. The fleet of drones considers a 3D transport space and several structures and configurations have been developed to allow 3D movements. It also analyses the problem of routing of the fleet of drones using several heuristic methods and simulation, whose objective function is to minimize the total cost. An extension of the problem of the traveller seller with capacity and restrictions is analysed (CVRP). Finally, a technological uprising required by the drone transport system is carried out.

关键词： drones Mass Customization non-linear programming optimization vehicle routing problem with capacity and restrictions

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EPQ model for hybrid manufacturing / remanufacturing systems with price sensitive demands 10th

EPQ model for hybrid manufacturing / remanufacturing systems...

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10th IFAC Triennial Conference on Manufacturing Modelling, Management and Control (MIM)

作者： Godichaud, Matthieu Amodeo, Lionel Univ Technol Troyes LIST3N Comp Sci & Digital Soc Lab Troyes France

The problem of determining economic production quantities and demands, with respect to prices for a hybrid manufacturing / remanufacturing system is addressed in this paper. Most of studies in the literature consider same market for new and remanufactured (as-good-as new assumption) and separate production line. We consider in this paper that products are processed on a common line and are sold in distinct market with price sensitive demands The problem is modelled and solved with a non-linear model. A numerical analysis is developed to validate the model and analyze its feasibility and limits. Copyright (C) 2022 The Authors.

关键词： Remanufacturing EPQ pricing non-linear programming

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The supply-side effects of cannabis legalization

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JOURNAL OF CANNABIS RESEARCH 2022年第1期4卷 40页

作者： Han, Joohun Ng'ombe, John N. Oklahoma State Univ Dept Agr Econ Stillwater OK 74078 USA North Carolina A&T State Univ Dept Agribusiness Appl Econ & Agrisci Educ Greensboro NC 27411 USA

Objective The purpose of this study is to examine how cannabis legalization and corresponding taxation would affect the supply-side of the cannabis market. Specifically, the study considers various scenarios in which Oklahoma legalizes recreational cannabis for adult use and simulates changes in state-level market sales for other legal states and the average grower profits in Oklahoma. We assume that legalizing recreational cannabis in medical-only states would significantly increase the demand quantity in the legalized states and the local government would levy a significant level of tax on recreational cannabis. These assumptions are based on the post-legalization phenomena in other legalized US states. Method We simulate outcomes in the cannabis industry under the assumption of representative consumers with constant elasticity of substitution demand behavior and profit-maximizing firms with a Cobb-Douglas profit function. All agents are assumed to take exogenous prices as given. We calibrate the model using state-level sales data from 2020 and explore potential policies in Oklahoma and at the federal level. Results We find that, under the scenarios we consider, legalization of recreational cannabis in Oklahoma would lead to a decrease in the quantity of cannabis sold in Oklahoma's medical cannabis market as well as decreases in the quantity of cannabis sold in other states on average. Furthermore, we find that as the excise tax rate on recreational cannabis in Oklahoma is increased, the demand quantity in recreational cannabis market would decrease while the other markets' demand quantity would increase on average. As the elasticity of substitution between state-level products increases, the overall demand quantity would increase and the market quantity across states become more sensitive to Oklahoma's tax policies. This pattern could become starker as the elasticity of substitution between recreational and medical cannabis increases. In terms of profit, heavy ta

关键词： Cannabis market Cannabis legalization Recreational cannabis non-linear programming Nested CES function The USA Oklahoma

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COG Network Model for Military Planning Based on Improved Analysis Network Process

COG Network Model for Military Planning Based on Improved An...

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2nd International Conference on Cloud and Green Computing / 2nd International Conference on Social Computing and its Applications (CGC/SCA)

作者： Wang, Jiang Feng, Xiu-qun Qian, Meng Zhu, Cheng Natl Univ Def Technol Sci & Technol Lab Informat Syst Engn Changsha 410073 Hunan Peoples R China

ISBN: (纸本)9780769548647

Center of Gravity (COG) analysis is an integral and cognitively demanding part of developing the course of action (COA) in military operational planning. However, the COG may be an abstract concept, or directly assaulting the COG is not feasible. Therefore, the critical vulnerabilities (CV) which influencing the COG must be determined. To do so, this paper proposes a COG network model based on the improved ANP. The importance of this work is that it augments the ANP to support rapid decision-making and overcome the subjectivity of human, and it uses the coordination theory to identify the dependencies of targets. Finally, a case study is conducted to show how this model is used to analyze the COG and generate corresponding actions.

关键词： Center of Gravity Target Selection Course of Action Analytic Network Progress non-linear programming Coordination Theory

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A Collision Detection Algorithm Based on Self-adaptive Genetic Method in Virtual Environment 1

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1st International Conference on Swarm Intelligence

作者： Wu, Jue Chen, Lixue Yang, Lei Zhang, Qunyan Peng, Lingxi SW Petr Univ Coll Comp Sci & Technol Chengdu 610500 Sichuan Peoples R China South West Univ Sci & Technol Coll Comp Sci & Technol SiChuan 621010 Peoples R China Guangzhou uni Coll Com Sci & Edu software Guangzhou 510006 Guangdong Peoples R China

ISBN: (数字)9783642134951

ISBN: (纸本)9783642134944

Collision detection is very important to enhance the sense of reality and immersion in virtual environment Most of the traditional collision detection algorithms have been analyzed. but there is no algorithm that is applicable to all situations. and with the scene complexity increases, the efficiency of the algorithm tends to decline rapidly In this impel. a new method is proposed to solve the problems converting the problem of collision detection to the nonlinear programming problem with constraint conditions, and then using the adaptive genetic algorithm to solve it The experiment results show that this method is et tic lent. especially in large-scale scenes

关键词： collision detection genetic algorithm non-linear programming

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Optimization Methods for Evaluating PV Hosting Capacity of Distribution Circuits 46

Optimization Methods for Evaluating PV Hosting Capacity of D...

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IEEE 46th Photovoltaic Specialists Conference (PVSC)

作者： Jothibasu, Suma Santoso, Surya Dubey, Anamika Elect Power Res Inst Palo Alto CA 94304 USA Univ Texas Austin Dept Elect & Comp Engn Austin TX 78712 USA Washington State Univ Sch Elect Engn & Comp Sci Pullman WA 99164 USA

ISBN: (纸本)9781728104942

As today's distribution grid is experiencing increased rooftop solar installations, there is growing interest in evaluating the PV hosting capacity (HC) of the grid. Since, predicting the exact size and location of potential PV installations is not feasible at the distribution grid planning phase, a stochastic method is employed to choose a finite number of combinations of possible PV size and location. As a result, the calculated PV HC is a range of total PV capacity in MW that a circuit can accommodate and not a single value. Additionally, the calculated PV HC range is not unique;it varies with the PV distribution considered for the analysis. This paper proposes an optimal power flow based formulation to find the maximum PV capacity in MW that can be accommodated in a given distribution grid. The PV HC values are evaluated for IEEE 123 bus circuit by the proposed method and the results are compared with the conventional approach. It is observed that the results of the optimal power flow method is unique and can act as the upper bound for the stochastic PV HC analysis.

关键词： Distributed photovoltaic cells Voltage Smart Inverter Optimization non-linear programming

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A unified approach to statistical image reconstruction using dual ascent optimization

A unified approach to statistical image reconstruction using...

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Nuclear Science Symposium/Medical Imaging Conference

作者： Li, MH Kudo, H Univ Tsukuba Grad Sch Syst & Informat Engn Tsukuba Ibaraki 305 Japan

We propose a new framework to construct convergent row-action type iterative algorithms for statistical image reconstruction. We demonstrate that the proposed framework called DUCOA can be applied to both emission and... 详细信息

ISBN: (纸本)0780387007

关键词： PET SPECT image reconstruction non-linear programming

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OPC and PSM design using inverse lithography: A non-linear optimization approach

OPC and PSM design using inverse lithography: A non-linear o...

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Conference on Optical Microlithography XIX

作者： Poonawala, Amyn Milanfar, Peyman Univ Calif Santa Cruz Dept Comp Engn Santa Cruz CA 95064 USA Univ Calif Santa Cruz Dept Elect Engn Santa Cruz CA 95064 USA

ISBN: (纸本)0819461970

We propose a novel method for the fast synthesis of low complexity model-based optical proximity correction (OPC) and phase shift masks (PSM) to improve the resolution and pattern fidelity of optical microlithography. We use the pixel-based mask representation, a continuous function formulation, and gradient based iterative optimization techniques to solve the above inverse problem. The continuous function formulation allows analytic calculation of the gradient. Pixel-based parametrization provides tremendous liberty in terms of the features possible in the synthesized masks, but also suffers the inherent disadvantage that the masks are very complex and difficult to manufacture. We therefore introduce the regularization framework;a useful tool which provides the flexibility to promote certain desirable properties in the solution. We employ the above framework to ensure that the estimated masks have only two or three (allowable) transmission values and are also comparatively simple and easy to manufacture. The results demonstrate that we are able to bring the CD on target using OPC masks. Furthermore, we were also able to boost the contrast of the aerial image using attenuated, strong, and 100% transmission phase shift masks. Our algorithm automatically (and optimally) adds assist-bars, do-ears, serifs, anti-serifs, and other custom structures best suited for printing the desired pattern.

关键词： inverse lithography OPC PSM pixel-based approach non-linear programming optimization regularization low-complexity

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