Editorial: Second Volume of Acta Marisiensis. Seria Technologica

<abstract xmlns="http://www.w3.org/1999/xhtml">The influence of the sintering temperature on the structure and on the hysteresis loops of Fe3+ doped Pb(ZrxTi1-x)O3 system has been investigated. Three compositions have been selected in the following mode: one in rhombohedral region, one in MPB region and one in tetragonal region have been obtained by solid state reaction technique. Sintering has been carried out at 12000C and 12500C respectively. The nature of the phases has been investigated in detail using X-ray diffraction analysis (XRD). All the sintered samples reveal a perovskite type structure. The surfaces have been lapped and metalized in order to obtaine the hysteresis loops at room temperature. The results showed a similar behaviour with “hard” PZT ceramics.</abstract>

National Institute for Research & Development in Electrical Engineering ICPE-CA

University of Medicine, Pharmacy, Science and Technology”G.E.Palade”of Tîrgu Mures

Effects of Sintering Temperature on Structural and Electrical Properties of Fe3+ Doping PZT Ceramics

<abstract xmlns="http://www.w3.org/1999/xhtml">Tubular steel structures with slender compression cross-sections are prone to local buckling. In this paper the axial compression is investigation of the innovative fabricated structural steel column consisting of sinusoidal corrugated pattern. When it comes to the design of compressive individuals, buckling is a crucial layout provision. The paper describes the effect of variation in the sectional properties like mean diameter, thickness, amplitude, and frequency of corrugation on the buckling axial load. A quadratic model was developed to correlate the independent variables for maximum buckling load by using central composite design (CCD) method. Subsequently ANOVA, a statistical tool is used to analyse and compare the different combinations and finding the most influential factor on buckling load. Response surface methodology is adopted to review the interaction models between the different combinations.</abstract>

Buckling Analysis of Innovative Corrugated Column by using Response Surface Methodology

<abstract xmlns="http://www.w3.org/1999/xhtml">In according with the situation created by the pandemics of the world [4,6,7,8,9,10], the Covid-19 viruses were affected the all fields of activity from the all domains, like as: industrial domains, tourism, commercial, even of the educational system at all levels [1,2]. In this context our university, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, it had to move from the classical educational system to approach of the new online modular system. This forced adaptation presents a lots of problems, especially of the all specializations within the Faculty of Engineering and Information Technology, where there are practical activities that involve laboratories with practical execution they cannot be performed by the online system. After an experience gained of almost 4 months of online activity, more several negative aspects are configured to be analyzed in order to find constructive solutions for optimizing the online educational system [1]. The present paper proposes to identification of a questionnaire addressed for the students as well as to the teachers from the Faculty of Engineering and Information Technology of UMFST “G.E.Palade” of Tg.Mures. Following the analysis of the all results of the questionnaire, the deficiencies of the problems raised by the technical disciplines that require phisicals practical applications in laboratory classes will be identified, respectively new directions for the development of modular online education will be identified representing the only alternative of the onsite classic education in this situation.</abstract>

Aspects Regarding the Online Modular Education System Compared with the Classical Onsite System

<abstract xmlns="http://www.w3.org/1999/xhtml">Generalized solution of a Cauchy problem given by a nonhomogeneous linear differential system is recovered to this approach. It considers the case of the free term having at most countable number of discontinuity points. The method, called successive approach, uses the solution on the previous interval (except the first one) for the condition on the given interval. The sequence of commands for a computer algebra system to this method is given.</abstract>

A Note on Generalized Solution of a Cauchy Problem Given by a Nonhomogeneous Linear Differential System

<abstract xmlns="http://www.w3.org/1999/xhtml">Information and Communication Technologies (ICT) have experienced a large application in many fields, such as smart homes, health monitoring, environmental monitoring, and a great number of studies is present in literature. In particular, it is expected that the Internet of Things (IoT) will become increasingly pervasive in everyday life. Among different technologies, devices based on Long Range (LoRa) and LoRaWAN stand out due to their relative low cost, low power consumption and large cover range. In this survey, recent papers investigating applications of LoRa modules have been selected. The different use-cases are presented with a comparison between communication parameters and results obtained.</abstract>

A Survey on Devices Exploiting Lora Communication

<abstract xmlns="http://www.w3.org/1999/xhtml">The purpose of this paper is to show the integral form of the original Schur inequality and to give some applications.</abstract>

The Integral Form of the Schur Inequality

<abstract xmlns="http://www.w3.org/1999/xhtml">It is acknowledged that providing a safe water supply for all countries is one of the major challenges of the twenty-first century. Egypt is one of the greatest countries affected in Africa and Middle East. The Nile is facing a major water shortage due to the limited water resources and the the demand is growing as a result high population growth and development in industrial and agricultural sectors. This paper has been motivated by the fact that there is no up-to-date literature review of the optimal operation of Water Resources. The analysis of the reviewed literature is structured along five broad branches: (1) Mathematical Optimization Modelling Studies, (2) Numerical Simulation Modelling Studies, (3) Geographical Information Systems “GIS” based Studies, (4) Ecological Studies, (5) Water Reuse Studies. This review is limited to surface water but groundwater has been inexplicitly included. The paper concludes the best way to identify knowledge to cover the gap between water supply and demands and to guide future researches on water resources planning and management.</abstract>

Modeling in Water Resources Management in East Nile Delta: Review

<abstract xmlns="http://www.w3.org/1999/xhtml">The purpose of this paper is to review the legislation framework in the field of work-based learning (WBL), conducted in six European countries: Romania, Poland, Portugal, Germany, Bulgaria and Cyprus. The scope is to identify the policies and the legal framework set, or lack of such, in the field of WBL. A comparative analysis between formal regulations is done. Finally, policy recommendations for performing of evidence-based policy in the field of WBL are formulated: specific legislation for WBL, quality assurance of WBL programmes, incentives for employers participating in WBL programmes.</abstract>

Industrial Research Institute for Automation and Measurements

“George Emil Palade” University of Medicine, Pharmacy, Science, and Technology of Târgu Mureş

Legislation Review and Policy Recommendation for Work-Based Learning

<abstract xmlns="http://www.w3.org/1999/xhtml">Discrete time signals carry information about systems and their internal functional mechanisms which characterize their complexity. Complexity measures are strongly related to information content and evaluations have been made on various signals in many ways in last few years. This paper uses information theory estimates of complexity as different types of entropies in order to estimate the complexity of various time discrete synthesized signals. Results show that this kind of indices can be a useful tool in diagnostic, fault detection and further development.</abstract>

George Emil Palade University of Medicine, Pharmacy, Sciences and Technology of Tirgu Mures

Methods in Complexity Analysis of Discrete Time Signals

AHEAD OF PRINT

Volume 20 (2023): Issue 2 (December 2023)

Volume 20 (2023): Issue 1 (June 2023)

Volume 19 (2022): Issue 2 (December 2022)

Volume 19 (2022): Issue 1 (June 2022)

Volume 18 (2021): Issue 2 (December 2021)

Volume 18 (2021): Issue 1 (June 2021)

Volume 17 (2020): Issue 2 (December 2020)

Volume 17 (2020): Issue 1 (June 2020)

Volume 16 (2019): Issue 2 (December 2019)

Volume 16 (2019): Issue 1 (June 2019)

Acta Marisiensis. Seria Technologica

 Acta Marisiensis - Seria Technologica is an open access international scientific journal of the Faculty of Engineering and Information Technology of the University of Medicine, Pharmacy, Sciences and Technology of Târgu Mureș, which is published by the University Press under the CC BY 4.0.   Acta Marisiensis - Seria Technologica aims to meet the demand for an international journal bringing together all aspects of research from different areas of knowledge in engineering technologies. The journal fulfils this aim by publishing the original research papers of prominent international researchers. The published articles are discussed in terms of concepts, state of the art research, standards, implementations, running experiments, applications, and industrial case studies. Topics cover a wide range of engineering subjects like: manufacturing, nano and micro technology, information systems, advanced software technology, parallel and distributed computing, power and energy systems, electronics and electrotechnology, optimization techniques, signal and image processing, quality control technology.  Acta Marisiensis - Seria Technologica is an open access journal with all content freely available on the public internet, permitting any users to read, download, copy, distribute, print, search, or link to the full texts of these articles, scrawl them for indexing, pass them as data to software, or use them for any other lawful purpose, without financial, legal, or technical barriers other than those inseparable from gaining access to the internet itself. The only constraint on reproduction and distribution, and the only role for copyright in this domain, should be to give authors control over the integrity of their work and the right to be properly acknowledged and cited.This is in accordance with the BOAI definition of open access.Authors are not charged for the submission or processing of their papers.  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. 