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

The development of measuring devices such as sensors and transducers appeared as a necessity imposed by technical progress and the need to control certain processes in real time. The paper proposes the analysis and implementation of an automated greenhouse where the “heart” of the circuit is the Atmega328P microcontroller integrated on an Arduino Nano development board.
</abstract>

Implementation of an Automated Greenhouse

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

Natural gas is an indispensable resource for human life. Its transport is usually done through underground pipelines. Due to the environment in which they are placed, the pipelines are subjected to a continuous process of corrosion. This paper aimed a 3D numerical analysis using specialized software (COMSOL Multiphysics) to study several parameters that influence the corrosion of underground pipelines. Starting from real geometric and environmental data, a comparative analysis was performed, considering the pipeline coating (e.g., with HDPE - high- density polyethylene), the placement of the cathode protection electrode, and the soil conductivity near the pipeline. The results confirm the need to cover the pipelines and can be a starting point for choosing the final configuration of the cathodic protection system.
</abstract>

3D Analysis of Pipeline with Cathodic Corrosion Protection

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

The use of solar electric vehicles (SEV) has recently been the subject of frantic communication by many researchers in this sector such as researcher (GASBAOUI Brahim and F. Burling). In this research, we focused on adopting other renewable energy sources, such as wind energy, to convert this energy into kinetic energy for the vehicle (EVWTG electric vehicle). The main aim of this research is to adopt the principle of a wind turbine generator in order to power an electric vehicle (EV), which relies on energy of the air currents on the surface of the vehicle and converts them into electrical energy to feed the electric motor simultaneously or storage by batteries. This system has several draw backs such as continuous energy production and controlling the speed of the wind turbine. For this, we developed a technique to ensure the production of electrical energy and its management according to the proposed system energy management technology. The operation model of the proposed EVWTG system was simulated using MATLAB, where the results obtained proved the effectiveness of the proposed control and energy management, which can be used in other practical studies in the future.
</abstract>

Department of Physics, Faculty of Sciences

Management and Modeling of a Hybrid Electric Vehicle

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

Photovoltaic (PVS) generators’ nonlinear electrical characteristics allow for greater performance and efficiency when they are forced to operate at their peak power (MPP). This article suggests an adaptive method for maximizing power point tracking that makes use of artificial neural network (ANN) techniques (MPPT). A step-up converter powered by a separate solar generator is under the control of an ANN controller built on a neural network training database (PVS). The results show that ANN-MPPT has good control performance and is near to the maximum power point of PVS when compared to conventional MPPT methods like perturb and observe and incremental conductance.
</abstract>

Improved Artificial Neural Network Design for MPPT Grid-Connected Photovoltaic Systems

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

The assembly formed by a pn semiconductor homojunction together with the metal contacts necessary to connect the junction to the external circuit is a diode. The article aims to analysed and determine the internal parameters of a pn homojunction using the Octave software.
</abstract>

Analysis of Silicon PN Homojunctions Using Octave

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

Nowadays, the use of quadcopters in daily life has become important due to its capabilities and ability to carry out many tasks in many fields like civil, military, industrial, and agricultural fields. The modelling of the quadcopter and deeply understanding its movements is very important to ensure that the simulations of its behaviour are as close as possible to reality and also helps us to design a flight controller. In this work, we used a modern technique on MATLAB (Simscape) to simulate a quadcopter in real-time. At first, we build a quadcopter using Simscape multibody then we simulated the PID regulator, the command algorithms, and the motor model with the applied forces on the body to achieve the global model that we can use to study the movement of the quadcopter on the three-axis which ensure a stable functioning. The results obtained show the stability of the four movements of the quadcopter (roll, pitch, yaw, and altitude).
</abstract>

Laboratoire de Recherche en Électromécanique et Sûreté de Fonctionnement, LRESF Laboratory

Quadcopter Prototype Stability Analysis Using Matlab Simscape Library

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

The curves for charge and discharge experiments demonstrate specific temperature and current behaviour for the 26650-type battery cell. For that reason, it is extremely important the heat impact on electrochemical reactions and on transfer actions. The base for model parameterization is built by isothermal simulations at different temperatures. In this article, there are presented modifications of thermodynamics and kinetics to accomplish a good connection with the results of the processes concerning charge and discharge curves for different C-rates and various background heat.
</abstract>

The Development of a Macro Model for a 26650-Type Battery Cell

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

The scientifical data of the batteries LiFePO4- based is short. The present paper talks about the data sheet of the usage of this kind of battery, provided by the Mather company production, data sheet which has insufficient information about the performance of this kind of battery. This paper presents the performance of a numerous experimental investigations. It entitles prescribing definite conditions to operate, for instance implemented electricity and the background heat, parameters requested to certify a future pattern precisely. In consequence, it can be searched a large range of operation conditions which can involve extreme cases regarding the fact that the battery normally is not used. Even more, the results of the experiments provide the base platform for analogy with simulations under various conditions. The on- going agreements or disparity between them are a good provider to perfect a future model and to upgrade and enhance the understanding of a battery.
</abstract>

The Analysis of Particular Specifications of A 26650-Type Cell

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

The present work aims to present the operation mode, both theoretically and practically, of an automatic monitoring and control system of the water circuit in a system with thermosolar panels, as well as the main advantages that it constitutes as an automated system of this kind, both in industry and in the everyday life of each of us.
</abstract>

Temperature Monitoring System and Water Control from a Thermosolar Panel

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

The goal of this paper is to present the benefits of digitalization and Internet of Things applied in various fields of industry, including in cereal reception bases. Using Waterfall Methodology, this article widely describes the project plan of a web-based application which has the role of monitorization the grain storage sheds from perspective of temperature, humidity, pressure, and motion. Using microprocessor-based systems and distinct types of sensors such as temperature, humidity, pressure and motion, the information collected from the grain storage hall is displayed on a web-based application so that operators of the base easily can monitor these parameters.
</abstract>

Internet of Things Applied in Grain Reception Base

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

The goal of this paper is to be an incipient case study of interdisciplinarity between AGILE SCRUM Methodology and food processing industry. The purposes of interdisciplinarity are profit maximization, productivity increasing and customer satisfaction. This paper starts with a short introduction in theoretical aspects about Agile, including SCRUM framework, emphasizing the applicability of SCRUM Methodology in many fields, including biotechnologies and food processing industry.
</abstract>

University of Agricultural Sciences and Veterinary Medicine

Land Measurements and Exact Sciences Department

Agile Project Management in Food Industry

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

Considering the poor quality of the air, devices for monitoring the environment have become more and more sought after, they not only offer precise measurements, but also provide added comfort to users. This article presents the components needed to build an electrical device used for ambiental monitoring, a cost analysis, and a study on the acquisition costs of commercial devices that have similar monitoring capabilities.
</abstract>

Building a Low-Cost Electric Device for Ambiental Monitoring

AHEAD OF PRINT

Volume 23 (2023): Issue 2 (December 2023)

Volume 23 (2023): Issue 1 (September 2023)

Volume 22 (2022): Issue 2 (December 2022)

Volume 22 (2022): Issue 1 (July 2022)

Volume 21 (2021): Issue 2 (December 2021)

Volume 21 (2021): Issue 1 (April 2021)

Volume 20 (2020): Issue 1 (April 2020)

Volume 19 (2019): Issue 2 (October 2019)

Volume 19 (2019): Issue 1 (April 2019)

Volume 18 (2018): Issue 2 (October 2018)

Volume 18 (2018): Issue 1 (April 2018)

Volume 17 (2017): Issue 2 (October 2017)

The Scientific Bulletin of Electrical Engineering Faculty

 Although the beginning of higher education in Targoviste has its roots in the Middle Ages, it became official and institutionalized after 1990, when, on the 1st of June 1992 University Valahia of Targoviste was set up.  Since 1994, regularly, the scientific life of University was gradually enriched with the first volumes of Annals of Valahia University. Starting from the year 2000, the Faculty of Electrical Engineering periodically organizes the “International Symposium on Electrical Engineering” – ISEE, a national and international scientific event, its works being published with the support of Bibliotheca Publishing House in a special Proceedings volume.  A qualitative step was made with the first issue of the journal „The Scientific Bulletin of Electrical Engineering Faculty - SBEEF” in 2001, which provided to the electrical engineering community an important instrument to express the scientific engineering creation. At the same time, through the strategy for the selection and publication of best scientific contributions, „The Scientific Bulletin of Electrical Engineering Faculty - SBEEF” has constantly followed to manifest the leadership position in education and research in the electrical engineering field.  Currently, the journal encourages and strengthens the scientific cooperation at international level, by conducting exchanges with the journals of several well-known national and international institutions. The editorial committee and reviewers of SBEEF are composed by prestigious personalities of the academic and research life, both at national level – Romanian Academy, University Politehnica of Bucharest, University of Oradea, University of Pitesti, Technical University “Gh. Asachi” Iasi, University Dunarea de Jos of Galati, Univerrsity of Medicine and Pharmacy “Carol Davilla” of Bucharest, CEZ Trade Romania, ICPE Bucharest, University Valahia of Targoviste, and at international level – Politecnico di Torino, University of Poitiers, Technical University of Copenhagen, University of Patras, Polytechnic University of Warsaw, University of Tampere, Technical University of Melbourne, University of Valladolid, Canadian Institute Energy, Technical University of Fes, Institute for Research ABB-Schwartz of Geneva, University of Louvain, Belgium, Univ. Paris8, IUT de Montreuil, University of Zaragoza, Grenoble Institute of Technology, Energy System Institute SB RAS, Irkutsk, Universidade Federal de Santa Catarina Florianopolis, University of Ulster, Nevsehir Haci Bektas University.  The editorial committee receives and analyzes the contributions of authors, the review activities being made in the frame of two main sections, which of them contains eleven subsections, Section A: Electric Circuit Theory and Analysis, Renewable Energy Sources, Electromagnetic Compatibility/Power Quality, Energy Efficiency, Electrical Machines and Drives, Power Systems, Computational Electromagnetic, Materials for Electrotechnics, Measurements Techniques/Virtual Instrumentation/Sensors and Transducers, CAD in Electrical Engineering, and Biomedical Engineering, and Section B: Control Systems, Artificial Intelligence Techniques, Modeling and Simulation, Distributed Systems, Real-time Systems, Telecommunications Technologies and Software, Signals and Image Processing, E-learning, Applied Informatics, Robotics, Educational use of ICT. On these lines, in the Editorial Board academia professors and researchers with scientific competences were co-opted – all of them fully recognized by the scientific international community. The peer-review process of the manuscript proposed for publication in „The Scientific Bulletin of Electrical Engineering Faculty” is conducted in accordance with the common international procedures, including anti-plagiarism verification.  For all the authors, whose number has increased continuously, the doors for affirmation are permanently opened in all the scientific fields of electrical and electronic engineering, power systems, and computer science and also in biomedical engineering and their chirurgical applications. In addition, even if the journal had initially an annual occurrence, in 2008 and 2009 two numbers saw the light of printing and since 2010 there were three occurrences every year and since 2013, 4 volumes every year. Since 2008 SBEEF is indexed in international database Index Copernicus Master List Journals  journals.indexcopernicus.com/karta.php?action=masterlist&amp;id=3797 with IC value 3,61 for 2009, 4,41 for 2010, 4,91 for 2011, 5,19 for 2012, 5,27 for 2013, and 6.5 for 2014.  On behalf of the editors we invite scientific researchers, specialists and teachers involved in electrical engineering and in close areas to work for the preparation and publication of their scientific contributions in the „The Scientific Bulletin of Electrical Engineering Faculty”.   Rejection Rate   8%   Archiving  Sciendo archives the contents of this journal in 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. 