<abstract xmlns="http://www.w3.org/1999/xhtml">The development of intelligent smart grids requires new electrical monitoring solutions in order to optimize power consumption. The implementation of intelligent energy-monitors leads to new technical developments to optimize consumption using intrusive and non-intrusive techniques. This paper makes a review of the main methods used for load monitoring systems, indicating their advantages and disadvantages. The emergence of high-harmonic consumer electronics in electrical networks such as LED lighting sources implies the choice of the appropriate method and equipment for optimizing energy consumption based on energy signatures.</abstract>

Load Monitoring Solutions for the Smart Buildings – An Overview

<abstract xmlns="http://www.w3.org/1999/xhtml">The concept of cogeneration defines the simultaneous production with the same installation of electric and thermal energy (in the form of hot water or steam). High-efficiency cogeneration implies that cogeneration production should ensure primary energy savings of at least 10% compared to the reference values of separate production of electricity and heat. This paper presents the process of functioning of a cogeneration plant, operating in the Suceava county, Romania, referring to the actual values regarding the consumption and the proportions of the raw material on the one hand and the energy produced on the other. It also describes the entire production process as well as the impact on the environment, the social and economic aspects of the implementation of such a project.</abstract>

Cogeneration Plant on Biomass - Case Study

<abstract xmlns="http://www.w3.org/1999/xhtml">Communication is one of the most important things in human life, day by day the technology is changing, data rate becomes faster and equipment’s are also becoming compact, as the results of change in technology. The human beings have also adapted to the technology as well. In this article the revolution of wireless technologies like 2G, 3G, 4G and 5G (Future generation network) are explained. This article mainly focused on background of wireless communication system, models and technologies adapted for 4G and 5G. The key technologies, spectrum allocation and current projects are discussed and described; this work gives a detailed research to address the projects and developments for future generation wireless technology.</abstract>

Mobile Communication - Past, Present and Future: a Review

<abstract xmlns="http://www.w3.org/1999/xhtml">In this paper it is presented the control system of an automated storage which was conceived and achieved at the University of Oradea by using a Blue Earth 485 microcomputer. There are presented the main components of the control system: the microcomputer and the hardware interface for the drive, the control programs conceived as well as the implemented user interface on a PC computer.</abstract>

Controlling an Automated Storage by using the Blue Earth 485 Microcomputer

<abstract xmlns="http://www.w3.org/1999/xhtml">This article deals with developing new modified algorithms of 40kb/s ADPCM. Beside the standard algorithm, three algorithms are developed to reduce the ADPCM distortion. The performances of all algorithms are evaluated with QAM signal at speed of 9.6kb/s. The outcomes demonstrate that the first proposed algorithm outperforms the other algorithms.</abstract>

Comparison Between 40kb/s ADPCM Algorithms

<abstract xmlns="http://www.w3.org/1999/xhtml">The paper proposes the development of a wireless video camera that is used to capture images from any microscope, and is universally compatible with the standard C-Mount. The purpose behind developing this camera is to offer an economical alternative to the current high-priced microscopy camera without compromising performance. In addition this camera has the technology to work wirelessly.</abstract>

Raspberry Pi Based Microscope Camera with Wireless Functionality

<abstract xmlns="http://www.w3.org/1999/xhtml">The CNC (Computer numerical control) is a machine that processes different kinds of materials at different types of precisions, determined by the system used to realize the transmission from the motor to the axes. In our project, we used the screw nut transmission because it offers a great precision and it has an optimal price-quality ratio.</abstract>

CNC Router with Screw-Nut Transmissions

<abstract xmlns="http://www.w3.org/1999/xhtml">The project aims at creating a monitoring and control circuit in a desktop or complex system with the possibility to set the operating parameters. The project allows automatic and manual control of a certain number of fans using Pulse Width Modulation (PWM) control by the user or automatically by the system monitoring thresholds of minimum and average temperatures (also set by the user within the code). The system was designed with the following options: audible and visual alert when reaching maximum temperatures; time display, PWM percentage and three temperatures shown on a 16x2 LCD; the system-acquired data is then transmitted to a website. Additional features include the possibility of setting a color inside the system, also used as an alert as well as a color adjustment function by sound (for a musical lightshow). The mode of operation is based on the source code written in the Arduino IDE 1.6.3 software with the help of free libraries and free codes provided on the internet.</abstract>

Advanced Fan Controller Using Atmega 1284P

<abstract xmlns="http://www.w3.org/1999/xhtml">Wireless Body Area Networks (WBANs) have been developed as the human-body monitoring systems to predict, diagnose, and treat diseases. Since the signal transmission in WBANs takes place in or around the human body the channel fading significantly affects packet error rate and overall network performance. This paper focuses on the design and demonstration of an ultra-wideband (UWB) modem to be used in the WBAN applications, and the evaluation of its performance over Rayleigh fading channel. Results show how the fading channel affects the performance of the system.</abstract>

On the Performance of UWB-WBAN Modem

<abstract xmlns="http://www.w3.org/1999/xhtml">The proposed system is a method to power supply luminaires in inaccessible areas. It proposes a method with using PV panels and calculating MPPT. It is a method of supply luminaires with LiFePO4 batteries using remote transmission and transmission electrical parameters using microcontrollers for a complete autonomy and management system.</abstract>

Power Supply for Luminaires Located in Restricted Areas with Photovoltaic Panels Calculating MPPT

<abstract xmlns="http://www.w3.org/1999/xhtml">The paper describes some functionality extensions for a D.C. motor speed control system with PID controller used as a didactic unit. The extensions are made in two directions: one at a physical-hardware level and the other one at software development of numerical algorithms and graphical interface. Both developments have the aim to extend and to get a more flexible paradigm for the control algorithms study on both continuous and discrete approach and to add the possibility to compare different control solutions.</abstract>

Control Systems Engineering and Management Department

Functionality Extension for A D.C. Motor Speed Control Didactic System with PID Controller

<abstract xmlns="http://www.w3.org/1999/xhtml">The paper proposes the development of a weather station made up from a Raspberry Pi 3 and the Sense Hat shield. The shield used in this application has sensors for temperature, humidity and pressure. The weather station can connect to the internet wirelessly or with a standard UTP (Unshielded twisted pair) connection, this connection gives us the ability to take part in a scientific community for the sole purpose to monitor the weather all around the world. The program for the weather station is made in Python, the program language is easy to used and very versatile.</abstract>

Raspberry Pi Based Weather Station

AHEAD OF PRINT

Volume 24 (2024): Issue 1 (June 2024)

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. 