You are currently viewing a new version of our website. To view the old version click .

3,397 Results Found

  • Article
  • Open Access
15 Citations
4,396 Views
19 Pages

Energy-Efficient Topology Control for UAV Networks

  • Seongjoon Park,
  • Hyeong Tae Kim and
  • Hwangnam Kim

27 November 2019

Following striking developments in Unmanned Aerial Vehicle (UAV) technology, the use of UAVs has been researched in various industrial fields. Furthermore, a number of studies on operating multiple autonomous networking UAVs suggest a potential to us...

  • Article
  • Open Access
3 Citations
2,100 Views
25 Pages

30 July 2023

The challenges of computational cost and robustness are critical obstacles in topology optimization methods, particularly for the iterative process of optimizing large-scale multiphysical structures. This study proposes an efficient and robust topolo...

  • Article
  • Open Access
1 Citations
4,998 Views
17 Pages

Probability Model Based Energy Efficient and Reliable Topology Control Algorithm

  • Ning Li,
  • Jose-Fernan Martinez-Ortega,
  • Lourdes Lopez Santidrian and
  • Juan Manuel Meneses Chaus

20 October 2016

Topology control is an effective method for improving the performance of wireless sensor networks (WSNs). Many topology control algorithms can achieve high energy efficiency by dynamically changing the transmission range of nodes. However, these algo...

  • Communication
  • Open Access
14 Citations
3,613 Views
10 Pages

High-Efficiency Achromatic Metalens Topologically Optimized in the Visible

  • Lijuan Zhang,
  • Chengmiao Wang,
  • Yupei Wei,
  • Yu Lin,
  • Yeming Han and
  • Yongbo Deng

27 February 2023

Metalens, composed of arrays of nano-posts, is an ultrathin planar optical element used for constructing compact optical systems which can achieve high-performance optical imaging by wavefront modulating. However, the existing achromatic metalenses f...

  • Article
  • Open Access
24 Citations
3,551 Views
20 Pages

9 September 2019

Due to resource constraints and severe conditions, wireless sensor networks should be self-adaptive to maintain certain desirable properties, such as energy efficiency and fault tolerance. In this paper, we design a practical utility function that ca...

  • Article
  • Open Access
4 Citations
3,891 Views
18 Pages

14 May 2018

We studied the non-equilibrium current, transport coefficients and thermoelectric performance of a nano-junction, composed by a quantum dot connected to a normal superconductor and a topological superconductor leads, respectively. We considered a one...

  • Article
  • Open Access
23 Citations
7,059 Views
15 Pages

8 January 2021

The advancement of electric mobility as a measure to comply with international climate targets and sustain renewable resources in the future has led to an electrification of the mobility sector in recent years. This trend has not been spared in the l...

  • Article
  • Open Access
2 Citations
4,975 Views
26 Pages

Probability of Interference-Optimal and Energy-Efficient Analysis for Topology Control in Wireless Sensor Networks

  • Ning Li,
  • José-Fernán Martínez-Ortega,
  • Vicente Hernández Diaz and
  • Juan Manuel Meneses Chaus

30 November 2016

Because wireless sensor networks (WSNs) have been widely used in recent years, how to reduce their energy consumption and interference has become a major issue. Topology control is a common and effective approach to improve network performance, such...

  • Article
  • Open Access
5 Citations
3,396 Views
19 Pages

An Energy-Efficient T-Based Routing Topology for Target Tracking in Battery Operated Mobile Wireless Sensor Networks

  • K. Kalaivanan,
  • G. Idayachandran,
  • P. Vetrivelan,
  • A. Henridass,
  • V. Bhanumathi,
  • Elizabeth Chang and
  • P. Sam Methuselah

14 February 2023

Real-time smart applications are now possible because to developments in communication and sensor technology. Wireless sensor networks (WSNs) are used to collect data from specific disaster sites, such as fire events, gas leaks, land mines, earthquak...

  • Article
  • Open Access
1 Citations
2,006 Views
20 Pages

20 February 2024

The increasing popularity of electric drives employing an isolated dual-inverter (DI) topology is motivated by their superior DC-link voltage and power utilization, fault-tolerant operation, and potential for multilevel operation. These attributes ar...

  • Article
  • Open Access
1 Citations
1,919 Views
15 Pages

1 September 2023

Hierarchical reinforcement learning (HRL) offers a hierarchical structure for organizing tasks, enabling agents to learn and make decisions autonomously in complex environments. However, traditional HRL approaches face limitations in effectively hand...

  • Review
  • Open Access
16 Citations
6,011 Views
40 Pages

7 March 2025

The increasing penetration of renewable energy sources (RESs) into medium-voltage (MV) and low-voltage (LV) power systems presents significant challenges in ensuring power grid stability and energy sustainability. Advanced power conversion technologi...

  • Article
  • Open Access
3 Citations
1,792 Views
21 Pages

11 May 2023

Wave energy converters are attracting attention as an energy source that can respond to climate change. In order to increase the energy efficiency of the wave energy converters, efficient power converters are also required. The efficient converters r...

  • Article
  • Open Access
22 Citations
4,030 Views
19 Pages

The Design and Optimization of a Wireless Power Transfer System Allowing Random Access for Multiple Loads

  • Linlin Tan,
  • Ming Zhang,
  • Songcen Wang,
  • Shulei Pan,
  • Zhenxing Zhang,
  • Jiacheng Li and
  • Xueliang Huang

15 March 2019

As is common in multi-load wireless power transfer (WPT) systems based on series–series compensation topology, the power received by loads and the efficiency of the process are highly sensitive to changes in the number of loads. To guarantee th...

  • Article
  • Open Access
49 Citations
18,731 Views
14 Pages

9 March 2017

For radio frequency energy transmission, the conversion efficiency of the receiver is decisive not only for reducing sending power, but also for enabling energy transmission over long and variable distances. In this contribution, we present a passive...

  • Article
  • Open Access
12 Citations
7,339 Views
19 Pages

Axial Flux Permanent Magnet Motor Topologies Magnetic Performance Comparison

  • Han Wang,
  • Xianwu Zeng,
  • John Frederick Eastham and
  • Xiaoze Pei

13 January 2024

Axial flux permanent magnet motors have attracted increasing attention due to their compact topology and high torque density. Many topological variations have arisen over time; however, limited research has directly compared the differences in magnet...

  • Feature Paper
  • Review
  • Open Access
5 Citations
3,469 Views
38 Pages

7 October 2023

Topology morphing insulation enables the on-demand switching of thermal properties between insulative and conducting states through shape change. The adaptive nature of these systems allows them to regulate heat transfer by dynamically altering insul...

  • Article
  • Open Access
3 Citations
2,811 Views
14 Pages

2 May 2024

Aiming at the problem that silicon-controlled rectifiers (SCR) and pulse width modulation (PWM) rectifiers cannot balance high power levels, high hydrogen production efficiency, and high grid connected quality in the current research on rectifier pow...

  • Article
  • Open Access
2 Citations
3,618 Views
24 Pages

4 June 2018

This paper proposed a modularized discharge-type topology for the voltage balance of series-connected super capacitor (SC) string. The proposed topology consists of cascaded converter modules and a boost converter. The cascaded converter modules disc...

  • Article
  • Open Access
42 Citations
3,284 Views
25 Pages

Optimal Hybrid PV Array Topologies to Maximize the Power Output by Reducing the Effect of Non-Uniform Operating Conditions

  • Suneel Raju Pendem,
  • Suresh Mikkili,
  • Shriram S. Rangarajan,
  • Sudhakar Avv,
  • Randolph E. Collins and
  • Tomonobu Senjyu

2 December 2021

The photovoltaic (PV) system center inverter architecture comprises various conventional array topologies such as simple-series (S-S), parallel (P), series-parallel (S-P), total-cross-tied (T-C-T), bridge-linked (B-L), and honey-comb (H-C). The conve...

  • Review
  • Open Access
22 Citations
3,620 Views
16 Pages

A Unified Control Strategy for Inductor-Based Active Battery Equalisation Schemes

  • Xintian Liu,
  • Zhihao Wan,
  • Yao He,
  • Xinxin Zheng,
  • Guojian Zeng and
  • Jiangfeng Zhang

9 February 2018

Series battery equalisation can improve battery charge and discharge reliability and extend battery life. Inductor-based battery equalisation schemes have the advantages of simple topologies and control strategies. According to the energy transfer pa...

  • Article
  • Open Access
4 Citations
3,435 Views
15 Pages

22 June 2022

Energy harvesting devices made of piezoelectric material are highly anticipated energy sources for power wireless sensors. Tremendous efforts have been made to improve the performance of piezoelectric energy harvesters (PEHs). Noticeably, topology op...

  • Review
  • Open Access
1 Citations
1,587 Views
19 Pages

Optimization of Rock-Cutting Tools: Improvements in Structural Design and Process Efficiency

  • Yuecao Cao,
  • Qiang Zhang,
  • Shucheng Zhang,
  • Ying Tian,
  • Xiangwei Dong,
  • Xiaojun Song and
  • Dongxiang Wang

Rock-breaking cutters are critical components in tunneling, mining, and drilling operations, where efficiency, durability, and energy consumption are paramount. Traditional cutter designs and empirical process optimization methods often fail to addre...

  • Article
  • Open Access
21 Citations
5,560 Views
27 Pages

30 August 2019

Electric vehicles (EV) are gaining popularity due to current environmental concerns. The electric drive, which is constituted by a power converter and an electric machine, is one of the main elements of the EV. Such machines suffer from common mode v...

  • Article
  • Open Access
12 Citations
3,931 Views
16 Pages

Recently, Plug-in Hybrid Electric Vehicles (PHEVs) have gathered a lot of attention by integrating an electric motor with an Internal Combustion Engine (ICE) to minimize fuel consumption and greenhouse gas emissions. The On-Board Chargers (OBCs) are...

  • Article
  • Open Access
5 Citations
4,442 Views
16 Pages

Performance Comparison of Silicon- and Gallium-Nitride-Based MOSFETs for a Power-Efficient, DC-to-DC Flyback Converter

  • Osama Ahmed,
  • Yousuf Khan,
  • Muhammad A. Butt,
  • Nikolay L. Kazanskiy and
  • Svetlana N. Khonina

Gallium Nitride (GaN)-based devices offer many advantages over conventional electronic devices, such as lower input/output capacitances, a higher switching speed, and a compact size, resulting in higher-density power outputs and reduced switching los...

  • Article
  • Open Access
51 Citations
4,808 Views
22 Pages

A Topology Control with Energy Balance in Underwater Wireless Sensor Networks for IoT-Based Application

  • Zhen Hong,
  • Xiaoman Pan,
  • Ping Chen,
  • Xianchuang Su,
  • Ning Wang and
  • Wenqi Lu

16 July 2018

As part of the IoT-based application, underwater wireless sensor networks (UWSN), which are typically self-organized heterogeneous wireless network, are one of the research hot-spots using various sensors in marine exploration and water environment m...

  • Article
  • Open Access
218 Views
20 Pages

9 December 2025

The cement industry significantly contributes to global CO2 emissions, making material efficiency in concrete structures a crucial sustainability goal. This study addresses the challenge of excessive cement usage in traditional concrete design by opt...

  • Article
  • Open Access
6 Citations
4,089 Views
17 Pages

Single-Switch LED Post-Regulator Based on a Modified Class-E Resonant Converter with Voltage Clamp

  • Javier Ribas,
  • Pablo J. Quintana,
  • Jesus Cardesin,
  • Antonio J. Calleja and
  • Emilio Lopez-Corominas

The strict restrictions imposed both by mandatory regulations and by the recommendations contained in current standards have led to the fact that most commercially available LED ballasts nowadays use two-stage topologies. The first stage is intended...

  • Article
  • Open Access
5 Citations
2,219 Views
18 Pages

Research on High Power Factor Single Tube Variable Structure Wireless Power Transmission

  • Yi Yang,
  • Xuejian Zhang,
  • Lei Luo,
  • Shiyun Xie and
  • Qingshan Zhou

Aiming at the problems existing in the current radio energy transmission system, we propose a wireless power transmission (WPT) system with the parallel–parallel (PP)-compensated structure. The transmitter of the transmission system adopts a separate...

  • Article
  • Open Access
10 Citations
5,253 Views
26 Pages

14 October 2016

In high-density sensor networks, scheduling some sensor nodes to be in the sleep mode while other sensor nodes remain active for monitoring or forwarding packets is an effective control scheme to conserve energy. In this paper, a Coverage-Preserving...

  • Article
  • Open Access
605 Views
31 Pages

16 October 2025

This paper presents an enhanced non-isolated single-switch quadratic boost DC-DC converter. The proposed topology employs a single active switch, two inductors, two capacitors, and three diodes. The proposed design improves system reliability by repl...

  • Article
  • Open Access
3 Citations
2,144 Views
26 Pages

Vulnerability Assessment of Urban Rail Transit Network—A Case Study of Chongqing

  • Lan Xu,
  • Pengcheng Xiang,
  • Yan Qian,
  • Simai Yang,
  • Tao Zhou and
  • Feng Wang

9 January 2025

Urban rail network vulnerability assessment has become the core of the urban public transport system. Identifying and quantifying the vulnerability of urban rail transit is the key to coping with the crisis situation of the urban rail transit system....

  • Review
  • Open Access
4,423 Views
43 Pages

4 September 2025

Solid-state transformer (SST)-based ultra-fast charging stations (UFCSs) are emerging as a key technology in next-generation electric vehicle (EV) infrastructure, addressing the growing demand for efficient charging. Unlike traditional line-frequency...

  • Article
  • Open Access
555 Views
31 Pages

Domain-Oriented Hierarchical Topology Optimisation—An Approach for Heterogeneous Materials

  • João Dias-de-Oliveira,
  • Joaquim Pinho-da-Cruz and
  • Filipe Teixeira-Dias

18 September 2025

In structural topology optimisation, intermediate densities are typically interpreted as local distributions of heterogeneous materials, bridging the gap between a solid and a void through optimised arrangements of cellular or composite microstructur...

  • Article
  • Open Access
6 Citations
3,159 Views
11 Pages

A Frequency Locking Method for ICPT System Based on LCC/S Compensation Topology

  • Yansong Li,
  • Minhao Wang,
  • Weiwei Zhang,
  • Mengmeng Zhao and
  • Jun Liu

8 July 2019

Aiming to maximize the transmission efficiency of inductively coupled power transmission (ICPT) system with the designed output power, a frequency locking method for an ICPT system based on LCC/S compensation topology is proposed in this paper. First...

  • Article
  • Open Access
282 Views
26 Pages

10 December 2025

This study presents a comparative evaluation of Dijkstra’s algorithm, A*, Bellman-Ford, AI-Augmented A* and a neural AI-based model for shortest-path computation across diverse graph topologies, with a focus on time efficiency and memory consum...

  • Article
  • Open Access
5 Citations
3,210 Views
17 Pages

Parametric Design Approach for Wireless Power Transfer System: UAV Applications

  • Mohammed Terrah,
  • Mostafa-Kamel Smail,
  • Lionel Pichon and
  • Mohamed Bensetti

5 December 2024

Adopting Wireless Power Transfer (WPT) technology to an Unmanned Aerial Vehicle (UAV) involves adding extra components, which may impact the drone’s overall weight and performance. This paper aims to enhance UAV performance by designing a light...

  • Article
  • Open Access
13 Citations
7,071 Views
26 Pages

Benchmarking of Dedicated Hybrid Transmissions

  • Christian Sieg and
  • Ferit Küçükay

13 February 2020

For many manufacturers, hybridization represents an attractive solution for reducing the energy consumption of their vehicles. However, electrification offers a wide range of possibilities for implementing powertrain concepts. The concepts can differ...

  • Article
  • Open Access
27 Citations
6,775 Views
21 Pages

Direct current to direct current (DC/DC) converters are required to have higher voltage gains in some applications for electric vehicles, high-voltage level charging systems and fuel cell electric vehicles. Therefore, it is greatly important to carry...

  • Article
  • Open Access
1,075 Views
33 Pages

Centrality-Based Topology Control in Routing Protocols for Wireless Sensor Networks with Community Structure

  • Juan Diego Belesaca,
  • Andres Vazquez-Rodas,
  • Cristihan Ruben Criollo and
  • Luis J. de la Cruz Llopis

26 September 2025

Wireless sensor networks (WSNs) are key enablers of efficient communication in the Internet of Things (IoT) ecosystem. These networks comprise numerous sensor nodes that collaboratively collect and transmit data, requiring adaptive and energy-efficie...

  • Article
  • Open Access
2 Citations
1,946 Views
20 Pages

Modern Design of Carrier for Overhead Conveyor

  • Lukáš Hruzík,
  • Jiří Struž,
  • Miroslav Trochta,
  • Lukáš Klapetek and
  • Daniel Pišťáček

20 June 2024

Modern industry should apply modern design in the construction of production facilities. This is typically the case with belt production, where parts are moved towards the worker, or when moving parts from the factory to the warehouse and shipping ar...

  • Article
  • Open Access
7 Citations
6,667 Views
18 Pages

6 July 2023

In recent years, the frequent occurrence of extreme emergencies represented by heavy rainfall has posed a significant impact on urban transportation networks and caused great inconvenience to people’s production and life. This paper examines th...

  • Article
  • Open Access
2 Citations
1,982 Views
23 Pages

10 December 2024

Urban transit systems are crucial for modern cities, providing sustainable and efficient transportation solutions for residents’ daily commutes. Extensive research has been conducted on optimizing the design of transit systems. Among these stud...

  • Article
  • Open Access
9 Citations
4,088 Views
14 Pages

4 January 2021

This study is about an improved high-quality light-emitting diode (LED) converter for a T8 LED tube. The converter is separated into the AC driving circuit and DC driving circuit. Also, the LED tube was applied with an output ripple eliminator for th...

  • Article
  • Open Access
6 Citations
4,013 Views
21 Pages

26 September 2022

Mobility is undergoing changes. Increasingly strict legislation regarding pollutant emissions and the protection of the environment are more important than ever. The change to electric mobility is also presenting the mobile world with new challenges...

  • Article
  • Open Access
1 Citations
1,527 Views
21 Pages

Stress-Responsive Spatial Voronoi Optimization for Lightweight Architectural Shell Structures

  • Haining Zhou,
  • Xinyu Shi,
  • Da Wan,
  • Weijiu Cui,
  • Kang Bi,
  • Wenxuan Zhao,
  • Rong Jiao and
  • Hiroatsu Fukuda

Gradient porous structures (GPS) offer significant mechanical and functional advantages over homogeneous counterparts. This paper proposes a computational design framework utilizing spatial Voronoi diagrams to create lightweight, stress-responsive sp...

  • Article
  • Open Access
2 Citations
1,877 Views
28 Pages

12 January 2023

A challenge in association rules’ mining is effectively reducing the time and space complexity in association rules mining with predefined minimum support and confidence thresholds from huge transaction databases. In this paper, we propose an e...

  • Article
  • Open Access
497 Views
18 Pages

9 September 2025

Enhancing the failure tolerance ability of networks is crucial, as node or link failures are common occurrences on-site. The current fault tolerance schemes are divided into reactive and proactive schemes. The reactive scheme requires detection and r...

  • Article
  • Open Access
2,002 Views
18 Pages

Topology-Aware Efficient Path Planning in Dynamic Environments

  • Haoning Zhao,
  • Jiamin Guo,
  • Chaoqun Wang,
  • Xuewen Rong and
  • Yibin Li

29 December 2024

This study presents a path-planning approach toward efficient obstacle avoidance in dynamic environments. The developed approach features the awareness of the topological structure of the dynamic environment at a planning instant. It is achieved by e...

of 68