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Inventions, Volume 8, Issue 4

2023 August - 26 articles

Cover Story: Stirling engines are currently of interest due to their adaptability to a wide range of energy sources. Using data from 34 engines over a wide range of operating conditions, this paper proposes two groups of regression-based models and simple ANNs to estimate the maximum power of kinematic Stirling engines. Three-input models fit the operating data with relative errors of about ±25%, while the classical correlations are not adequate for a significant number of data, and do not provide criteria for estimating the speed corresponding to the peak power points. Using eight-input models, estimates of maximum indicated power match practically all the operating data, with relative errors within ±10%. Estimates of maximum brake power are less accurate, but are acceptable for the preliminary design stage. View this paper
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Articles (26)

  • Article
  • Open Access
3 Citations
2,125 Views
15 Pages

Analysis of the Efficiency of Various Receipting Multiple Access Methods with Acknowledgement in IoT Networks

  • Vyacheslav V. Borodin,
  • Valentin E. Kolesnichenko and
  • Vyacheslav A. Shevtsov

An Internet of things (IoT) network is a distributed set of “smart” sensors, interconnected via a radio channel. The basic method of accessing the radio channels for these networks is Carrier Sense Multiple Access/Collision Avoidance (CSM...

(This article belongs to the Special Issue Recent Advances and New Trends in Signal Processing)
  • Article
  • Open Access
2 Citations
4,069 Views
20 Pages

Inductive Compensation of an Open-Loop IPT Circuit: Analysis and Design

  • Mario Ponce-Silva,
  • Alan R. García-García,
  • Jaime Arau,
  • Josué Lara-Reyes and
  • Claudia Cortés-García

The main contribution of this paper is the inductive compensation of a wireless inductive power transmission circuit (IPT) with resonant open-loop inductive coupling. The variations in the coupling coefficient k due to the misalignment of the transmi...

(This article belongs to the Special Issue Recent Advances and Challenges in Emerging Power Systems)
  • Review
  • Open Access
179 Citations
14,596 Views
45 Pages

Recent Inventions in Additive Manufacturing: Holistic Review

  • Ismail Fidan,
  • Orkhan Huseynov,
  • Mohammad Alshaikh Ali,
  • Suhas Alkunte,
  • Mithila Rajeshirke,
  • Ankit Gupta,
  • Seymur Hasanov,
  • Khalid Tantawi,
  • Evren Yasa and
  • Ankit Sharma
  • + 3 authors

This general review paper presents a condensed view of recent inventions in the Additive Manufacturing (AM) field. It outlines factors affecting the development and commercialization of inventions via research collaboration and discusses breakthrough...

(This article belongs to the Special Issue Innovations in 3D Printing 2.0)
  • Article
  • Open Access
10 Citations
5,529 Views
16 Pages

This paper provides preliminary research regarding the implementation and evaluation of a hybrid mechanism of authentication based on fingerprint recognition interconnected with RFID technology, using Arduino modules, that can be deployed in differen...

(This article belongs to the Special Issue Perspectives and Challenges in Doctoral Research—Selected Papers from the 11th Edition of the Scientific Conference of the Doctoral Schools of “Dunărea de Jos” University of Galati (SCDS-UDJG))
  • Article
  • Open Access
2,248 Views
23 Pages

The use of embedded processors is the most promising direction in the development of automatic control systems. The article is devoted to analog models and technical solutions that allow continuous analysis of information in a technical system in ord...

(This article belongs to the Special Issue Recent Advances and New Trends in Signal Processing)
  • Article
  • Open Access
3,312 Views
23 Pages

The increasing popularity of electric vehicles presents both opportunities and challenges for the advancement of lithium battery technology. A new longitudinal-flow heat dissipation theory for cylindrical batteries is proposed in order to increase th...

(This article belongs to the Special Issue The Development and Optimization of Innovative Systems, Processes, and Materials for the Production, Conversion, and Storage of Energy (Volume 2))
  • Communication
  • Open Access
3 Citations
2,974 Views
15 Pages

Performance Evaluation of Photonics-Based Coherent MIMO Radar Systems for Maritime Surveillance

  • Malik Muhammad Haris Amir,
  • Salvatore Maresca,
  • Gaurav Pandey,
  • Antonio Malacarne,
  • Antonella Bogoni and
  • Mirco Scaffardi

Multiple-input multiple-output (MIMO) radars offer significant advantages over conventional standalone radars in terms of target detection and localization capabilities. However, to fully exploit their potential, such systems require excellent time a...

(This article belongs to the Special Issue Recent Advances and New Trends in Signal Processing)
  • Article
  • Open Access
4 Citations
2,554 Views
17 Pages

Management of Hardware Vulnerabilities in the Life Cycle Stages of Microprocessors and Computers

  • Ignat Bychkov,
  • Irina Mikhailova,
  • Pavel Korenev,
  • Vitaliy Pikov and
  • Anatoly Ryapukhin

This article discusses the topical issues of managing information security vulnerabilities in the life cycle stages of processors and computer equipment. An analysis of the experience of identifying vulnerabilities in the course of the joint design o...

(This article belongs to the Special Issue Recent Advances and New Trends in Signal Processing)
  • Article
  • Open Access
1 Citations
2,399 Views
20 Pages

The periodic nature of stream-wise flow occurs in a cooling channel so frequently due to the multiple heat sources in electronic equipment, demanding the creation of an effective technique to improve the heat-cooling convection. This work explores th...

(This article belongs to the Special Issue Recent Advances in Fluid Mechanics and Transport Phenomena)
  • Article
  • Open Access
3 Citations
2,891 Views
32 Pages

This work proposes a procedure for the multi-objective design of a robust forecasting ensemble of data-driven models. Starting with a data-selection algorithm, a multi-objective genetic algorithm is then executed, performing topology and feature sele...

(This article belongs to the Special Issue Data Analytics in the Energy Sector)
  • Article
  • Open Access
2 Citations
2,322 Views
18 Pages

A mathematical model of the working processes occurring in the gas cap has been developed on the basic fundamental laws of conservation of energy, mass and motion, and the equation of state, both taking into account the change in the mass of the gas...

(This article belongs to the Special Issue Innovative Research and Applications in Hydrodynamics and Flow Control)
  • Article
  • Open Access
1 Citations
1,941 Views
13 Pages

An unmanned aerial vehicle (UAV)-integrated control system is a set of functionally independent subsystems of the ground and space segments interacting with each other under the conditions of the stochastic nature of the external environment. There i...

(This article belongs to the Special Issue Recent Advances and New Trends in Signal Processing)
  • Article
  • Open Access
6 Citations
5,020 Views
20 Pages

This paper presents a numerical model for simulating melting and solidification driven by natural convection, and validates it against a previous experiment. The experiment involved filling a rectangular aluminum enclosure with RT28HC Phase Change Ma...

(This article belongs to the Special Issue Recent Advances in Fluid Mechanics and Transport Phenomena)
  • Article
  • Open Access
6 Citations
2,912 Views
20 Pages

The Use of Computer Vision to Improve the Affinity of Rootstock-Graft Combinations and Identify Diseases of Grape Seedlings

  • Marina Rudenko,
  • Yurij Plugatar,
  • Vadim Korzin,
  • Anatoliy Kazak,
  • Nadezhda Gallini and
  • Natalia Gorbunova

This study explores the application of computer vision for enhancing the selection of rootstock-graft combinations and detecting diseases in grape seedlings. Computer vision has various applications in viticulture, but publications and research have...

(This article belongs to the Special Issue Recent Advances and New Trends in Signal Processing)
  • Article
  • Open Access
9 Citations
6,243 Views
10 Pages

Brain–Computer-Interface-Based Smart-Home Interface by Leveraging Motor Imagery Signals

  • Simona Cariello,
  • Dario Sanalitro,
  • Alessandro Micali,
  • Arturo Buscarino and
  • Maide Bucolo

In this work, we propose a brain–computer-interface (BCI)-based smart-home interface which leverages motor imagery (MI) signals to operate home devices in real-time. The idea behind MI-BCI is that different types of MI activities will activate...

(This article belongs to the Special Issue Recent Advances and New Trends in Signal Processing)
  • Article
  • Open Access
12 Citations
3,381 Views
22 Pages

Performance Analysis of Harmonic-Reduced Modified PUC Multi-Level Inverter Based on an MPC Algorithm

  • Umapathi Krishnamoorthy,
  • Ushaa Pitchaikani,
  • Eugen Rusu and
  • Hady H. Fayek

Renewable and distributed energy generation includes wind turbines, fuel cells, solar cells, and batteries. These distributed energy sources need special power converters in order to connect them to the grid and make the generated power available for...

(This article belongs to the Special Issue Recent Advances and Challenges in Emerging Power Systems)
  • Article
  • Open Access
1 Citations
2,671 Views
20 Pages

Hydrogen powered vehicles use high-pressure reservoirs from which the gas is transferred to the low-pressure fuel-cell via a classical pressure reduction valve. In these systems no expansion work is recovered and the question is addressed of the pote...

(This article belongs to the Special Issue The Development and Optimization of Innovative Systems, Processes, and Materials for the Production, Conversion, and Storage of Energy (Volume 2))
  • Article
  • Open Access
3 Citations
3,304 Views
27 Pages

Stirling engines are currently of interest due to their adaptability to a wide range of energy sources. Since simple tools are needed to guide the sizing of prototypes in preliminary studies, this paper proposes two groups of simple models to estimat...

(This article belongs to the Section Inventions and Innovation in Energy and Thermal/Fluidic Science)
  • Article
  • Open Access
21 Citations
2,911 Views
19 Pages

Closed-Form Hyper-Rayleigh Mode Analysis of the Fluctuating Double-Rayleigh with Line-of-Sight Fading Channel

  • Aleksey S. Gvozdarev,
  • Tatiana K. Artemova,
  • Aleksandra M. Alishchuk and
  • Marina A. Kazakova

The research studies hyper-Rayleigh behavior of a wireless communication system functioning in the presence of the generalized multipath fading. Although the initial metric (hyper-Rayleigh mode (HRM)) is quite informative, it is defined only asymptot...

(This article belongs to the Special Issue Recent Advances in Visible Light Communication and Optical Wireless Information Systems)
  • Article
  • Open Access
7 Citations
2,223 Views
19 Pages

A Decentralized Blockchain-Based Energy Market for Citizen Energy Communities

  • Peyman Mousavi,
  • Mohammad Sadegh Ghazizadeh and
  • Vahid Vahidinasab

Despite the fact that power grids have been planned and utilized using centralized networks for many years, there are now significant changes occurring as a result of the growing number of distributed energy resources, the development of energy stora...

(This article belongs to the Special Issue Recent Advances and Challenges in Emerging Power Systems)
  • Article
  • Open Access
1 Citations
3,667 Views
14 Pages

Tremors affect pediatric and adult populations, with roughly 3% of people worldwide experiencing essential tremors. Treatments include medication, deep brain stimulation, occupational/physical therapy, or adaptive equipment. This unblinded experiment...

(This article belongs to the Section Inventions and Innovation in Design, Modeling and Computing Methods)
  • Review
  • Open Access
55 Citations
10,192 Views
42 Pages

A Comprehensive Review of Architecture, Communication, and Cybersecurity in Networked Microgrid Systems

  • Ahmed Aghmadi,
  • Hossam Hussein,
  • Ketulkumar Hitesh Polara and
  • Osama Mohammed

Networked microgrids (NMGs) are developing as a viable approach for integrating an expanding number of distributed energy resources (DERs) while improving energy system performance. NMGs, as compared to typical power systems, are constructed of many...

(This article belongs to the Special Issue Microgrids: Protection, Cyber Physical Issues, and Control)
  • Article
  • Open Access
6 Citations
2,505 Views
17 Pages

The deployment of vehicular ad hoc network (VANET) is crucial to the development of autonomous vehicles. Radio frequency (RF) technology has been employed to transmit messages between vehicles and infrastructure in VANET. However, the limited RF band...

(This article belongs to the Special Issue Recent Advances in Visible Light Communication and Optical Wireless Information Systems)
  • Article
  • Open Access
1 Citations
2,156 Views
15 Pages

Design and Operation of a Gripper for a Berthing Task

  • Alexander Titov,
  • Matteo Russo and
  • Marco Ceccarelli

The idea of an extension of life for CubeSats is proposed to reduce space debris in a low-earth orbit. In this work, a gripper is designed for geometry-based grasping in berthing tasks. The grasping operation is outlined for square- and rectangle-sha...

(This article belongs to the Collection Feature Innovation Papers)
  • Communication
  • Open Access
3 Citations
2,287 Views
10 Pages

Whole-Body Cryostimulation: New Insights in Thermo-Aeraulic Fields inside Chambers

  • Rim Elfahem,
  • Boussad Abbes,
  • Bastien Bouchet,
  • Sebastien Murer,
  • Fabien Bogard,
  • Tala Moussa,
  • Fabien Beaumont and
  • Guillaume Polidori

(1) Background: This article presents a study that aims to provide a precise understanding of the temperature distribution within a whole-body cryostimulation (WBC) chamber, whether it is empty or occupied by one or several individuals; (2) Methods:...

(This article belongs to the Special Issue Recent Advances in Fluid Mechanics and Transport Phenomena)
  • Article
  • Open Access
10 Citations
2,674 Views
32 Pages

Since 2021, the prefectural authorities of the Attica Region in Greece have been operating a rewarding recycling program for the collection of clean recyclable waste in collaboration with the “Specialist Integrated Association of the Prefecture...

(This article belongs to the Collection Feature Innovation Papers)
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Inventions - ISSN 2411-5134