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1,390 Results Found

  • Article
  • Open Access
1 Citations
1,220 Views
20 Pages

The mathematical framework presented in this article focuses on the controlled-transmission protocol’s asynchronous process of bandwidth allocation for the target virtual connection implemented under competition for communication resources. The...

  • Article
  • Open Access
26 Citations
12,758 Views
28 Pages

Internet of Things (IoT) is considered one of the future disruptive technologies and has attracted lots of research attention in the recent past. IoT devices are tiny sensing or actuating devices attached to daily life objects, capable of sending sen...

  • Article
  • Open Access
4 Citations
2,274 Views
17 Pages

Topological Sequence Recognition Mechanism of Dynamic Connected Cars Using the Connected Mobile Virtual Fence (CMVF) System for Connected Car Technology

  • Young Hyun Eom,
  • Gyowoong Hwang,
  • Minsu Lee,
  • Young Geun Choi,
  • Sungkuk Cho,
  • R. Young Chul Kim and
  • Byungkook Jeon

24 June 2020

To prevent traffic accidents, even autonomous vehicles, as well as connected cars, need to know the driving situation of other vehicles in the vicinity. In particular, in emergency situations, messages’ transmission among vehicles can face many...

  • Article
  • Open Access
1,185 Views
17 Pages

6 November 2024

An increase in renewable energy generation in the microgrid can cause voltage oscillation problems. To address this issue, an equivalent circuit of the microgrid was established, including a synchronous generator, grid-connected inverter, and constan...

  • Article
  • Open Access
2,125 Views
26 Pages

31 January 2025

Examining remote virtual audiences is a vital part of understanding social experiences in modern human–computer interaction contexts. Doing so raises intriguing questions about how these mediated connections relate to emotional and physiologica...

  • Article
  • Open Access
7 Citations
2,368 Views
20 Pages

15 November 2023

Aiming at the problem that the bus voltage in a low-inertia DC microgrid is prone to be affected by internal power fluctuations, an adaptive virtual inertia control strategy for a grid-connected converter of a DC microgrid based on an improved model...

  • Article
  • Open Access
1,162 Views
16 Pages

22 January 2025

Space laser communication technology has advantages such as high bandwidth and low interference, but the limitation of the load capacity of an unmanned aerial vehicle (UAV) makes it difficult for UAV clusters to have sufficient communication links to...

  • Article
  • Open Access
3,427 Views
26 Pages

10 May 2018

Unbalanced power has a great influence on the safe and stable operation of the distribution network system. The static power compensator, which is essentially a grid-connected inverter, is an effective solution to the three-phase power imbalance prob...

  • Article
  • Open Access
2 Citations
5,655 Views
14 Pages

27 December 2023

In 2022, the National Museum of Australia launched an immersive virtual exhibition of Australian Aboriginal art: Connection: Songlines from Australia’s First Peoples, which was created and produced by Grande Experiences, the same team that prod...

  • Article
  • Open Access
11 Citations
8,734 Views
16 Pages

3 January 2018

In order to enhance the user experience of virtual reality (VR) devices, multi-user VR environments and wireless connections should be considered for next-generation VR devices. Wireless local area network (WLAN)-based wireless communication devices...

  • Article
  • Open Access
25 Citations
6,083 Views
21 Pages

26 May 2018

The Internet of Things is comprised of heterogeneous devices, applications, and platforms using multiple communication technologies to connect the Internet for providing seamless services ubiquitously. With the requirement of developing Internet of T...

  • Article
  • Open Access
13 Citations
2,142 Views
18 Pages

8 June 2023

A virtual synchronous generator (VSG) has a good adaptability to the weak grid but its grid-connected active power (GCAP) has the problem of a slow dynamic response under the active power command step. An optimization strategy of the GCAP dynamic res...

  • Article
  • Open Access
33 Citations
8,578 Views
26 Pages

Experimental Setup for Investigating the Efficient Load Balancing Algorithms on Virtual Cloud

  • Bhavya Alankar,
  • Gaurav Sharma,
  • Harleen Kaur,
  • Raul Valverde and
  • Victor Chang

21 December 2020

Cloud computing has emerged as the primary choice for developers in developing applications that require high-performance computing. Virtualization technology has helped in the distribution of resources to multiple users. Increased use of cloud infra...

  • Article
  • Open Access
324 Views
14 Pages

21 November 2025

The virtual synchronous generator (VSG) strategy has good application prospects as an effective measure to improve the grid inertia level. However, VSG strategy cannot stabilize DC voltage and may even affect the stability of DC voltage. To address t...

  • Feature Paper
  • Article
  • Open Access
29 Citations
8,471 Views
24 Pages

Evolution towards Smart and Software-Defined Internet of Things

  • Muhammad Aneeq Abid,
  • Naokhaiz Afaqui,
  • Muazzam A. Khan,
  • Muhammad Waseem Akhtar,
  • Asad Waqar Malik,
  • Arslan Munir,
  • Jawad Ahmad and
  • Balawal Shabir

21 February 2022

The Internet of Things (IoT) is a mesh network of interconnected objects with unique identifiers that can transmit data and communicate with one another without the need for human intervention. The IoT has brought the future closer to us. It has open...

  • Article
  • Open Access
1 Citations
2,845 Views
31 Pages

Electromechanical Design of Synchronous Power Controller in Grid Integration of Renewable Power Converters to Support Dynamic Stability

  • Mostafa Abdollahi,
  • Jose Ignacio Candela,
  • Andres Tarraso,
  • Mohamed Atef Elsaharty and
  • Elyas Rakhshani

10 April 2021

Nowadays, modern power converters installed in renewable power plants can provide flexible electromechanical characteristics that rely on the developed control technologies such as Synchronous Power Controller (SPC). Since high renewable penetrated p...

  • Article
  • Open Access
12 Citations
3,880 Views
27 Pages

Wireless Sensor Networks Fault-Tolerance Based on Graph Domination with Parallel Scatter Search

  • Abdel-Rahman Hedar,
  • Shada N. Abdulaziz,
  • Emad Mabrouk and
  • Gamal A. El-Sayed

21 June 2020

In wireless sensor/ad hoc networks, all wireless nodes frequently flood the network channel by transmitting control messages causing “broadcast storm problem”. Thus, inspired by the physical backbone in wired networks, a Virtual Backbone...

  • Article
  • Open Access
4 Citations
2,012 Views
13 Pages

To address the coordination issue of connected autonomous vehicles (CAVs) at unsignalized intersections, this paper proposes a game-theory-based distributed strategy equalization algorithm. To begin, the vehicles present in the scene are conceptualiz...

  • Article
  • Open Access
11 Citations
3,132 Views
16 Pages

19 June 2023

This paper proposes an adaptive strategy of co-regulating the three parameters—P/ω droop coefficient, virtual inertia, and damping coefficient—for the virtual synchronous generator (VSG). This approach is able to solve the uncoordin...

  • Article
  • Open Access
16 Citations
6,789 Views
19 Pages

Vehicle-in-Virtual-Environment (VVE) Method for Autonomous Driving System Development, Evaluation and Demonstration

  • Xincheng Cao,
  • Haochong Chen,
  • Sukru Yaren Gelbal,
  • Bilin Aksun-Guvenc and
  • Levent Guvenc

26 May 2023

The current approach to connected and autonomous driving function development and evaluation uses model-in-the-loop simulation, hardware-in-the-loop simulation and limited proving ground use, followed by public road deployment of the beta version of...

  • Article
  • Open Access
1 Citations
2,346 Views
16 Pages

Evaluation of a Virtual Tai Chi Program for Older Veterans at Risk of Loneliness or Physical Deconditioning: A Quality Improvement Project

  • Bonnie D. Dawson,
  • Hallie E. Keller,
  • Linda M. Sawyer,
  • Shannon Gorman,
  • Jerome A. Sabangan,
  • Adam McPartlin,
  • Sarah Payne,
  • Karl J. Brown,
  • Gail Li and
  • Dennis H. Sullivan

This Quality Improvement project evaluated the implementation of a virtual Tai Chi program for older Veterans (OVs) at risk of loneliness and/or physical deconditioning. A 12-week Tai Chi course was conducted virtually at three Veterans Affairs sites...

  • Article
  • Open Access
6 Citations
4,213 Views
22 Pages

12 February 2019

This paper proposes a virtual impedance-based bandwidth control method for multi-parallel harmonic-compensation grid-connected inverters (HCGIs). Firstly, the influence of the resonance points caused by the interaction of multiple HCGIs on the contro...

  • Article
  • Open Access
29 Citations
7,134 Views
21 Pages

Synchronous Power Control of Grid-Connected Power Converters under Asymmetrical Grid Fault

  • Weiyi Zhang,
  • Joan Rocabert,
  • J. Ignacio Candela and
  • Pedro Rodriguez

8 July 2017

Control of grid-connected power converters is continuously developing to meet the grid codes, according to which the generation units should keep connected to the grid and further provide ancillary services, such as voltage and frequency support, neg...

  • Article
  • Open Access
1 Citations
1,455 Views
15 Pages

Virtual Synchronous Generator Control of Grid Connected Modular Multilevel Converters with an Improved Capacitor Voltage Balancing Method

  • Haroun Bensiali,
  • Farid Khoucha,
  • Abdeldjabar Benrabah,
  • Lakhdar Benhamimid and
  • Mohamed Benbouzid

6 March 2025

Modular multilevel converters have emerged as a common solution in high-voltage and medium-voltage applications due to their scalability and modularity. However, these advantages come at the cost of increased control complexity, particularly when com...

  • Study Protocol
  • Open Access
9 Citations
10,375 Views
24 Pages

10 July 2023

Today, some of the most widely attended concerts are in virtual reality (VR). For example, the videogame Fortnite recently attracted 12.3 million viewers sitting in homes all over the world to a VR Travis Scott rap concert. As such VR concerts become...

  • Article
  • Open Access
12 Citations
2,747 Views
24 Pages

24 May 2021

In this paper, some collision avoidance systems based on MEC in a VANET environment are proposed and investigated. Micro services at edge are considered to support service continuity in vehicle communication and advertising. This considered system ma...

  • Article
  • Open Access
1 Citations
1,540 Views
32 Pages

Improved Fault Resilience of GFM-GFL Converters in Ultra-Weak Grids Using Active Disturbance Rejection Control and Virtual Inertia Control

  • Monigaa Nagaboopathy,
  • Kumudini Devi Raguru Pandu,
  • Ashmitha Selvaraj and
  • Anbuselvi Shanmugam Velu

20 July 2025

Enhancing the resilience of renewable energy systems in ultra-weak grids is crucial for promoting sustainable energy adoption and ensuring a reliable power supply during disturbances. Ultra-weak grids characterized by a very low Short-Circuit Ratio,...

  • Review
  • Open Access
21 Citations
4,462 Views
25 Pages

State-Space Modeling Techniques of Emerging Grid-Connected Converters

  • Fabio Mandrile,
  • Salvatore Musumeci,
  • Enrico Carpaneto,
  • Radu Bojoi,
  • Tomislav Dragičević and
  • Frede Blaabjerg

15 September 2020

In modern power electronics-based power systems, accurate modeling is necessary in order to analyze stability and the interaction between the different elements, which are connected to it. State space modeling seems a valid approach to study the mode...

  • Article
  • Open Access
29 Citations
8,579 Views
13 Pages

Proof of Concept of Home IoT Connected Vehicles

  • Younsun Kim,
  • Hyunggoy Oh and
  • Sungho Kang

5 June 2017

The way in which we interact with our cars is changing, driven by the increased use of mobile devices, cloud-based services, and advanced automotive technology. In particular, the requirements and market demand for the Internet of Things (IoT) device...

  • Article
  • Open Access
5 Citations
6,713 Views
15 Pages

9 September 2016

This paper presents a seamless transition method for a droop-controlled inverter. The droop control is suitable to make the inverter work as a voltage source in both islanded and grid-connected modes, however, the transfer between theses modes can re...

  • Review
  • Open Access
21 Citations
12,833 Views
30 Pages

Gut Microbiota as an Endocrine Organ: Unveiling Its Role in Human Physiology and Health

  • Lara Pires,
  • Ana Maria Gonzalez-Paramás,
  • Sandrina A. Heleno and
  • Ricardo C. Calhelha

15 October 2024

The gut microbiota, recognised for its vital functions in host health, operates as an endocrine organ, exerting systemic effects beyond the gastrointestinal tract. This “virtual organ” produces hormones that influence distal organs, inclu...

  • Article
  • Open Access
1 Citations
1,065 Views
24 Pages

Voltage Unbalance Control Strategy for Local Shading Photovoltaic Grid-Connected System

  • Pingye Wan,
  • Miao Huang,
  • Jinshan Mou,
  • Lili Tao,
  • Shuping Zhang and
  • Zhihua Hu

24 January 2025

In view of the sudden grid voltage distortions, such as voltage sags and unbalances, that may occur in photovoltaic (PV) grid-connected systems under local shading conditions, this paper proposes a control strategy integrating a linear active disturb...

  • Article
  • Open Access
2 Citations
1,500 Views
24 Pages

24 December 2024

Background/Objectives: This research investigates brain connectivity patterns in reaction to social and non-social stimuli within a virtual reality environment, emphasizing their impact on cognitive functions, specifically working memory. Methods: Em...

  • Article
  • Open Access
6 Citations
2,973 Views
13 Pages

Alongside the rapid and broad uptake of online learning in higher education, fully online students report feeling isolated and disconnected from their institutions. Although formal course content may be expertly designed to engage online learners, mu...

  • Article
  • Open Access
7 Citations
4,870 Views
11 Pages

5 November 2019

Virtual Reality is used in various ways for creating a storytelling experience. It gives us the opportunity to imagine one’s life events as a story, and in settings that are intended to aid the self, such as treatment of trauma, anxiety, phobia...

  • Article
  • Open Access
23 Citations
4,556 Views
14 Pages

Virtual Reality as an Immersive Teaching Aid to Enhance the Connection between Education and Practice

  • Martin Krajčovič,
  • Gabriela Gabajová,
  • Marián Matys,
  • Beáta Furmannová and
  • Ľuboslav Dulina

4 August 2022

Maximizing knowledge transfer is one of the main factors of modern education. It is important to raise the probability that students can successfully apply acquired knowledge into practice. This article deals with virtual reality (VR) as an alternati...

  • Feature Paper
  • Article
  • Open Access
19 Citations
3,353 Views
17 Pages

Small-Signal Stability Research of Grid-Connected Virtual Synchronous Generators

  • Shengyang Lu,
  • Yu Zhu,
  • Lihu Dong,
  • Guangyu Na,
  • Yan Hao,
  • Guanfeng Zhang,
  • Wuyang Zhang,
  • Shanshan Cheng,
  • Junyou Yang and
  • Yuqiu Sui

28 September 2022

The virtual synchronous generator (VSG) technique is used to simulate the external characteristics of a synchronous generator (SG) to provide certain damping and inertia to power systems. However, it may easily cause low-frequency oscillation of the...

  • Article
  • Open Access
11 Citations
2,872 Views
17 Pages

Adaptive Command-Filtered Backstepping Control for Virtual Synchronous Generators

  • Chengshun Yang,
  • Fan Yang,
  • Dezhi Xu,
  • Xiaoning Huang and
  • Dongdong Zhang

12 July 2019

Distributed energy sources are usually interfaced to the grid using power electronic converters, and lack of inertia in inverter dominated microgrids can affect the system stability. This paper presents a new method for virtual synchronous generator...

  • Article
  • Open Access
6 Citations
2,739 Views
23 Pages

1 August 2023

The proportion of distributed generation systems in power grids is increasing, leading to the gradual emergence of weak grid characteristics. Moreover, using voltage-sourced grid-connected inverters can enhance the stability of a weak grid. However,...

  • Article
  • Open Access
2,230 Views
13 Pages

Story Starter: A Tool for Controlling Multiple Virtual Reality Headsets with No Active Internet Connection

  • Andy T. Woods,
  • Laryssa Whittaker,
  • Neil Smith,
  • Robert Ispas,
  • Jackson Moore,
  • Roderick D. Morgan and
  • James Bennett

Immersive events are becoming increasingly popular, allowing multiple people to experience a range of VR content simultaneously. Onboarders help people do VR experiences in these situations. Controlling VR headsets for others without physically havin...

  • Article
  • Open Access
32 Citations
16,986 Views
22 Pages

Technology plays an essential role in shaping youth’s communication and social interactions in online multiplayer games. Due to physical distancing restrictions during the COVID-19 global pandemic, online multiplayer games like Minecraft and Roblox a...

  • Article
  • Open Access
1,160 Views
28 Pages

Analysis of Grid-Connected Damping Characteristics of Virtual Synchronous Generator and Improvement Strategies

  • Xudong Cao,
  • Ruogu Zhang,
  • Jun Li,
  • Li Ji,
  • Xueliang Wei,
  • Jile Geng and
  • Bowen Li

Focused on the contradiction between the steady-state error of active power and the dynamic oscillation caused by the virtual damping characteristics of the virtual synchronous generator (VSG) under disturbances during grid-connected operation, this...

  • Article
  • Open Access
35 Citations
9,095 Views
17 Pages

Connected Elbow Exoskeleton System for Rehabilitation Training Based on Virtual Reality and Context-Aware

  • Daniel H. de la Iglesia,
  • André Sales Mendes,
  • Gabriel Villarrubia González,
  • Diego M. Jiménez-Bravo and
  • Juan F. de Paz Santana

6 February 2020

Traditional physiotherapy rehabilitation systems are evolving into more advanced systems based on exoskeleton systems and Virtual Reality (VR) environments that enhance and improve rehabilitation techniques and physical exercise. In addition, due to...

  • Article
  • Open Access
1 Citations
1,104 Views
15 Pages

In this paper, we describe the developmental process of a culturally grounded Moombaki virtual reality (VR) game. We share how Aboriginal children’s drawings have informed the creation of an interactive learning platform for primary school-aged...

  • Article
  • Open Access
6 Citations
3,256 Views
23 Pages

7 November 2021

Path planning is a fundamental issue in robotic systems because it requires coordination between the environment and an agent. The path-planning generator is composed of two modules: perception and planning. The first module scans the environment to...

  • Article
  • Open Access
5 Citations
5,552 Views
14 Pages

6 December 2017

With the rapid development of renewable energy generation, single-phase grid-connected inverters have been widely applied in modern power systems. Since the power output of the renewable sources is continuously changing, independent active/reactive p...

  • Article
  • Open Access
8 Citations
5,284 Views
20 Pages

27 January 2023

In a connected car, the vehicle’s internal network is connected to the outside through communication technology. However, this can cause new security vulnerabilities. In particular, V2X communication, to provide the safety of connected cars, ca...

  • Article
  • Open Access
18 Citations
3,495 Views
20 Pages

13 June 2018

In allusion to the virtual synchronous generator (VSG)-based voltage source inverters in micro-grids, an integrated control method combining a quasi-synchronization algorithm and an islanding detection algorithm is proposed to improve the power suppl...

  • Article
  • Open Access
1 Citations
2,089 Views
16 Pages

21 August 2024

Sensory integration is an essential human function whose decline impacts quality of life, particularly in older adults. Herein, we propose an arm-reaching task based on a virtual reality head-mounted display system to assess sensory integration in da...

  • Article
  • Open Access
4 Citations
4,535 Views
22 Pages

Remote Power Control Injection of Grid-Connected Power Converters Based on Virtual Flux

  • Nurul Fazlin Roslan,
  • Alvaro Luna,
  • Joan Rocabert,
  • Jose Ignacio Candela and
  • Pedro Rodriguez

26 February 2018

Renewable Energy Source (RES)-based power plants need to control the active and reactive power at the Point of Common Connection (PCC) with the grid, in order to comply with the requirements of the Transmission System Operators (TSOs). This point is...

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