Results 11 to 20 of about 1,017,250 (273)

A Unified Framework for HS-UAV NOMA Networks: Performance Analysis and Location Optimization

IEEE Access, 2020
In this paper, we propose a unified framework for hybrid satellite/unmanned aerial vehicle (HSUAV) terrestrial non-orthogonal multiple access (NOMA) networks, where satellite aims to communicate with ground users with the aid of a decode-forward (DF) UAV
Xingwang Li, Qunshu Wang, Hongxing Peng, Hui Zhang, Dinh-Thuan Do, Khaled M. Rabie, Rupak Kharel, Charles C. Cavalcante   +7 more
doaj   +1 more source

Spatial accessibility analysis and location optimization of emergency shelters in Deyang

Geomatics, Natural Hazards & Risk, 2023
The selection and planning of the location of emergency shelters have a crucial impact on the safety of residents and cities. In this paper, based on multivariate open geographic data, the Gaussian two-step floating catchment area method, K-means ...
Zuopei Zhang, Yunfeng Hu, Wei Lu, Wei Cao, Xing Gao   +4 more
doaj   +1 more source

Research on Multi-Period Hydrogen Refueling Station Location Model in Jiading District

World Electric Vehicle Journal, 2021
The construction of hydrogen refueling stations is an important part of the promotion of fuel cell vehicles. In this paper, a multi-period hydrogen refueling station location model is presented that can be applied to the planning and construction of ...
Qianhui Zheng, Hong Lv, Wei Zhou, Cunman Zhang   +3 more
doaj   +1 more source

Probabilistic Load Flow–Based Optimal Placement and Sizing of Distributed Generators

Energies, 2021
Distributed generation (DG) is gaining importance as electrical energy demand increases. DG is used to decrease power losses, operating costs, and improve voltage stability. Most DG resources have less environmental impact.
Ferdous Al Hossain, Md. Rokonuzzaman, Nowshad Amin, Jianmin Zhang, Mahmuda Khatun Mishu, Wen-Shan Tan, Md. Rabiul Islam, Rajib Baran Roy   +7 more
doaj   +1 more source

A new methodology called dice game optimizer for capacitor placement in distribution systems [PDF]

, 2020
Purpose. Shunt capacitors are installed in power system for compensating reactive power. Therefore, feeder capacity releases, voltage profile improves and power loss reduces.
Al-Haddad, Kamal, Dehghani, M., Dhiman, G., Guerrero, Josep M., Malik, O. P., Montazeri, Z.   +5 more
core   +3 more sources

RSSI Centroid Location Algorithm Optimized by Chaotic Particle Swarm and Chicken Swarm [PDF]

Jisuanji gongcheng, 2021
When dealing with the traditional RSSI location algorithm, which is limited by low location accuracy, the Particle Swarm Optimization(PSO) method tends to fall into premature and local optimal solution.To address the problem, this paper proposes an RSSI ...
WANG Gaiyun, LU Jiazhuo, JIAO Ao, GUO Zhichao, ZHANG Qi
doaj   +1 more source

Design and implementation of urban logistics distribution center location optimization system

Journal of Hebei University of Science and Technology, 2017
In order to improve the efficiency of urban logistics distribution center location selection, and to overcome the shortcomings of the traditional method based on human aided calculation, the online map is used to obtain the path distance information ...
Peng GUO, Yang ZHOU, Feng ZHOU, Liman HU, Chenhao MA   +4 more
doaj   +1 more source

Quantized Control via Locational Optimization [PDF]

IEEE Transactions on Automatic Control, 2006
This paper studies state quantization schemes for feedback stabilization of control systems with limited information. The focus is on designing the least destabilizing quantizer subject to a given information constraint. We explore several ways of measuring the destabilizing effect of a quantizer on the closed-loop system, including (but not limited to)
Bullo, Francesco, Liberzon, Daniel
openaire   +2 more sources

A Multi-Objective Optimization of Physical Activity Spaces

Land, 2022
Optimizing the location of physical activity spaces (PAS) to ensure health, equity and efficiency has long been an important issue in urban planning. Given the health benefits of urban green spaces (UGS), taking Gongshu District in Hangzhou as a case, we
Fang Wei, Wenwen Xu, Chen Hua
doaj   +1 more source

On Optimal Location with Threshold Requirements [PDF]

SSRN Electronic Journal, 1998
The optimal location of services is one of the most important factors that affects service quality in terms of consumer access. On theother hand, services in general need to have a minimum catchment area so as to be efficient. In this paper a model is presented that locates the maximum number of services that can coexist in a given region without ...
Miquel Carreras, Daniel Serra
openaire   +2 more sources