<abstract xmlns="http://www.w3.org/1999/xhtml">

Cellular Vehicle-to-Everything (C-V2X) technologies are to allow vehicles to exchange information with each other, with the network, but also with other road users, based on secure, reliable, and high-capacity communication links. The use of C-V2X leads to improved road safety and traffic efficiency, over-the-air software updates, pollution reduction, and remote driving, which in the end support the implementation of autonomous vehicles. The main cellular communication standards used within the C-V2X technology are the following: 4G Long-Term Evolution (LTE) and 5G New Radio (NR). This paper follows both a theoretical analysis of cellular communications in the V2X technology, through a comparative analysis of the contribution of each of them concerning the offered technical specifications, and a practical part, where various performance indicators were validated using the Simu5G simulator, which can simulate wireless communication networks and network components with a behavior close to that experienced in real-life.
</abstract>

Comparative Analysis Between 4G LTE and 5G NR: An Evaluation of Cellular Communications For V2X Technology

<abstract xmlns="http://www.w3.org/1999/xhtml">

The main goal of this study is to develop a gaming platform for people who have had a stroke and are going through various stages of neuromotor rehabilitation. The main idea is that regular recovery activities are boring and repetitive, which might make people less interested in being in therapy. By including enjoyable but practical games into workout routines, there is potential to enhance patients’ motivation. To ensure the accuracy and reliability of the system, a validation process was conducted with the help of two stroke patients now undergoing rehabilitation at the Clinical Rehabilitation Hospital in Iași. The parameters were adjusted based on individual patient characteristics, and a total of 12 tests were conducted, from which various results were obtained. At the end of the clinical trial, feedback was gathered from patients in order to get first-hand perspectives from the intended users of the system and identify areas for potential system enhancement. In the end, this research has demonstrated some of the benefits and potential uses of virtual reality (VR) technology in patient rehabilitation, and the participants in the clinical study have found it to be positive and useful.
</abstract>

Gamification of Post-Stroke Neuromotor Rehabilitation Exercises Using  Hand Tracking In VR

<abstract xmlns="http://www.w3.org/1999/xhtml">

In this paper we conducted a study referring to survey of background magnetic field in a laboratory of Electrical Engineering Faculty, where students carry out didactic activity. Based on three sets of measurements made in the 2017-2023 period, a characterization of the main field sources and the background magnetic field was performed. During this period, the power supply network has suffered some changes, and in terms of the used instruments, it was switched from spot measurement performed with commercial instruments to continuous long-term surveys performed with automatic survey systems made and calibrated by authors. In addition to considering the spatial variation of the magnetic field, the study determines and analyzes the temporal variations of the background magnetic field, namely the daily, weekly and monthly variability. Thus, a great temporal variability of the magnetic field was identified with the week days and even months, can be reached in the ratios between the magnetic field averages on the week days and on the months of the year of order 4/1 or even 5/1.
</abstract>

On A Long-Term Survey of The Magnetic Field In A Laboratory

<abstract xmlns="http://www.w3.org/1999/xhtml">

This paper analyses the power consumption of an IoT node that captures images and transmits them to a cloud storage. Various implementation versions of the IoT node are proposed, focusing on the utilization of common components to achieve cost-effectiveness and minimize the maintenance requirements. The realised node variants were initially tested in laboratory conditions and then commissioned and deployed outdoors, being located in an orchard where they remained operational during 7 months under different meteorological conditions. The proposed solution utilizes an ESP32 microcontroller and a camera with a resolution of 1.3 Megapixels as a data acquisition node whose energy is assured by a Li-Po battery, charged through a solar panel. Wi-Fi communication was employed to transmit the images to the server. The power consumption of the node was evaluated for different variants of software optimization using the HTTP or the MQTT transmission modes. The instantaneous current consumption of the nodes was measured in laboratory to identify the power consumption for each phase of the program execution.
The experiments revealed that the MQTT transmission mode consumed considerably less power than the HTTP mode. Additional experiments have been performed in which the variation of the battery voltage, the solar panel voltage and the number of daily emissions in the examined period, as well as correlations between these quantities have been analyzed.
</abstract>

“Gheorghe Asachi” Technical University of Iași

“Alexandru Ioan Cuza” University of Iași

A Study Regarding Power Consumption of An IoT Node For Image Retrieval and its Optimization

<abstract xmlns="http://www.w3.org/1999/xhtml">

This virtual lab integrates the Matlab&amp;Simulink experimental model, which gives students the opportunity to verify their theoretical knowledge. The paper proposes the development of the Simulink model of the DC motor, aiming to achieve a more effective speed control. We describe the implementation of a virtual lab based on mathematical models. Our virtual lab in Matlab&amp;Simulink in correspondence with the traditional one implies particular advantages: the time allocated to the development of a virtual laboratory is shorter than that required for a classic one, the scalability is wider and the cost is lower. The paper presents with the three main blocks: the excitation, the inductor and the mechanical block. The parameters defining both the transient regime of the excitation circuit (application duration and excitation voltage) and the stabilized operating regime at idle are established. The new transient regime of operation under load is studied, followed by the stabilized regime of operation under load.
</abstract>

petronela-camelia.oprea@student.tuiasi.ro

Approaches to the Realization of A Virtual Electric Machine Laboratory on Matlab&amp;Simulink

<abstract xmlns="http://www.w3.org/1999/xhtml">

The paper aims to investigate the electromagnetic waves behavior in conductive media using analytical formulae. An example of a very long vertical conductive wall of given thickness placed in front of a vertically polarized electromagnetic wave is considered. The variation of the electromagnetic field quantities inside the conductive wall are detailed using analytic formulae. The numerical example considered was aimed to easily understand the important properties of the field behavior inside the conductive wall. The main conclusions end the paper.
</abstract>

Simulation of the Electromagnetic Waves Propagation in Conductive Media Using Analytical Formulae

AHEAD OF PRINT

Volume 69 (2023): Issue 1 (March 2023)

Volume 68 (2022): Issue 4 (December 2022)

Volume 68 (2022): Issue 3 (September 2022)

Bulletin of the Polytechnic Institute of Iași. Electrical Engineering, Power Engineering, Electronics Section

Volume 68 (2022): Issue 1 (March 2022)

Volume 67 (2021): Issue 4 (December 2021)

Volume 67 (2021): Issue 3 (September 2021)

Volume 67 (2021): Issue 2 (June 2021)

Volume 67 (2021): Issue 1 (March 2021)

 The journal Buletinul Institutului Politehnic din Iaşi, Electrotehnicã. Energeticã. Electronicã (Bulletin of thE Polytechnic Institute of Iasi, Electrical Engineering, Power Engineering, Electronics section) is publishing papers that present the research work in the broad area of Electrical Engineering, Power Engineering, Electronics, Automatic Control and Computer Science. The proposed topics of the published papers cover not only classical fields of Electrical and Computer Engineering Science, but also subjects in areas that show a rapid process of maturation. The journal is an effective mean of disseminating the recently obtained results, of promoting interdisciplinary research and also an opportunity for young researchers to present their relevant scientific work.  Authors are invited to submit papers to one of the following subject areas: Electrical Engineering Power Engineering Electronics Automatic Control Computer Science  The journal Buletinul Institutului Politehnic din Iaşi, Electrotehnicã. Energeticã. Electronicã is publishing mainly original research but, good quality focused review articles that scrutinize state of art, that highlight newly emerging trends or propose future directions for developing areas, are also welcomed after consulting the editor.  All articles are subject to a blind review assessing the content, scientific relevance, novelty and originality of research, quality of presentation, text structure and style, referencing, and the overall contribution of the article. Based on the review, the editor reserves the right to reject the paper or request the author to adjust it according to the reviewers suggestions.  The journal Buletinul Institutului Politehnic din Iaşi, Electrotehnicã. Energeticã. Electronicã is jointly coordinated by the Faculty of Electrical Engineering, Faculty of Electronics, Telecommunications and Information Technology and Faculty of Automatic Control and Computer Engineering of “Gheorghe Asachi” Technical University of Iași.  Plagiarism and Archiving Policy  Archiving  Sciendo archives the contents of this journal in System's Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 

Bulletin of the Polytechnic Institute of Iași. Electrical Engineering, Power Engineering, Electronics Section

Volume 69 (2023): Issue 1 (March 2023)

Comparative Analysis Between 4G LTE and 5G NR: An Evaluation of Cellular Communications For V2X Technology

Gamification of Post-Stroke Neuromotor Rehabilitation Exercises Using Hand Tracking In VR

On A Long-Term Survey of The Magnetic Field In A Laboratory

A Study Regarding Power Consumption of An IoT Node For Image Retrieval and its Optimization

Approaches to the Realization of A Virtual Electric Machine Laboratory on Matlab&Simulink

Simulation of the Electromagnetic Waves Propagation in Conductive Media Using Analytical Formulae

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